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.success-reg.overlay h2 span{font-weight:700}.newsletter-wrapper .success-reg.overlay p{border-bottom:none;color:#000;margin-top:.5rem;padding:0 .5rem .5rem}.newsletter-wrapper .err-reg.overlay .error-content{width:100%}.right .webmd-checkbox__label{margin-right:2rem}}@media only screen and (min-width:48rem){.ia-nl{min-width:46.875rem;padding-left:0}.ia-nl .newsletter-main{background-color:#edf0ff;border-radius:.25rem;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;margin:1.25rem 0 1.875rem 0;min-height:0;min-width:25rem;padding:2.125rem;width:46.875rem}.ia-nl .newsletter-main .header-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:horizontal;-webkit-box-direction:reverse;-ms-flex-direction:row-reverse;flex-direction:row-reverse;margin-bottom:1.25rem}.ia-nl .newsletter-main .header-container .nl-header-container h3{color:#1b1b1b;font-size:1.25rem;font-weight:700;line-height:1.4;margin-bottom:12px;margin-top:0}.ia-nl .newsletter-main .header-container .nl-header-container h4{display:block!important;font-family:Source Sans Pro,Arial,sans-serif;font-size:1.125rem;font-weight:400;line-height:1.6;margin:0}.ia-nl .newsletter-main .header-container .image-container{display:block;height:8rem;overflow:inherit;width:65%}.ia-nl .newsletter-main .header-container .image-container img{border-radius:4px;border-style:none;float:right;height:8rem}.ia-nl .newsletter-main .header-container .success-reg{margin-right:1.125rem;text-align:start}.ia-nl .newsletter-main .header-container .success-reg h2{color:#1b1b1b;font-family:Source Sans Pro,Arial,sans-serif;font-size:1.25rem;font-weight:700;line-height:1.4;margin:0}.ia-nl .newsletter-main .header-container .success-reg p{border-bottom:0;color:#1b1b1b;font-family:Source Sans 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.webmd-checkbox{-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#1b1b1b;display:-webkit-box;display:-ms-flexbox;display:flex;font-size:.875rem;line-height:1.4;letter-spacing:.7px;margin-left:0!important;padding:0!important}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox__input{height:1.125rem}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox:hover{background:transparent}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox .webmd-checkbox__inner{border:2px solid #3557ff;height:1.1375rem;width:1.125rem;border-radius:.3125rem}.ia-nl .newsletter-main .content-container .series-select .webmd-checkbox.is-checked .webmd-checkbox__inner{background:url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOSIgaGVpZ2h0PSI3IiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxwYXRoIGQ9Im0xLjM4NCAzLjExNSAyLjI1IDIuMDE5IDMuNzUtNC4wMzgiIHN0cm9rZT0iIzM1NTdGRiIgc3Ryb2tlLXdpZHRoPSIyIiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=) no-repeat;background-position:50%;background-size:.5625rem}.ia-nl .newsletter-main .content-container .email-container .email-input{margin-right:0;width:100%!important}.ia-nl .newsletter-main .content-container .email-container .email-input .webmd-input__inner{border:1px solid #cccce7;border-radius:5px 0 0 5px;color:#1b1b1b;font-size:.875rem;height:45px;letter-spacing:.14px;padding:0 .75rem 0 .75rem}.ia-nl .newsletter-main .content-container .email-container button{border-radius:0 5px 5px 0;font-size:18px;font-weight:600;height:45px;line-height:1.6;padding:0 .25rem;width:25.6%}.ia-nl .newsletter-main .content-container .email-container .webmd-button--primary{background-color:#3557ff}.ia-nl .newsletter-main .content-container .email-container .webmd-button--primary:disabled{background-color:#b3b3b3;color:#676767}.ia-nl .newsletter-main .content-container .nl-disclaimer{color:#1b1b1b;font-family:Source Sans Pro,Arial,sans-serif;font-size:.75rem;line-height:1.4;padding-bottom:0}.ia-nl .newsletter-main .content-container .nl-disclaimer a{color:#3557ff}}@media only screen and (min-width:48rem)and (max-width:51.1875rem){.ia-nl{min-width:44.5rem}.ia-nl .newsletter-main{width:44.5rem}}.footer-nl-social .nl-header-container h4{display:block!important;color:#fff;font-family:Source Sans Pro,Arial,sans-serif;font-size:1.125rem;font-style:normal;font-weight:400;line-height:1.1111rem}.footer-nl-social .content-container .series-select{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start}@media only screen and (max-width:47.875rem){.footer-nl-social 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.webmd-checkbox{-webkit-box-align:center;-ms-flex-align:center;align-items:center;color:#1b1b1b;display:-webkit-box;display:-ms-flexbox;display:flex;margin-left:0!important;padding:0!important}.nlhov-content-container .series-select .webmd-checkbox__input{height:1.125rem}.nlhov-content-container .series-select .webmd-checkbox:hover{background:transparent}.nlhov-content-container .series-select .webmd-checkbox .webmd-checkbox__inner{border:2px solid #3557ff;height:1.1375rem;width:1.125rem;border-radius:5px}.nlhov-content-container .series-select .webmd-checkbox.is-checked .webmd-checkbox__inner{background:url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOSIgaGVpZ2h0PSI3IiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxwYXRoIGQ9Im0xLjM4NCAzLjExNSAyLjI1IDIuMDE5IDMuNzUtNC4wMzgiIHN0cm9rZT0iIzM1NTdGRiIgc3Ryb2tlLXdpZHRoPSIyIiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiLz48L3N2Zz4=) no-repeat;background-position:50%;background-size:.5625rem}@media only screen and (max-width:47.938em){.nlhov-content-container .series-select{display:block;margin-bottom:0}.nlhov-content-container .series-select .webmd-checkbox{padding-bottom:10px!important}}.footer-nl-social .success-reg h2{font-weight:600;line-height:50px;text-align:left}@media(max-width:47.938rem){.footer-nl-social .success-reg h2{text-align:center}}.footer-nl-social .success-reg .see-more-container{-webkit-box-align:self-start;-ms-flex-align:self-start;align-items:self-start;-webkit-box-pack:left;-ms-flex-pack:left;justify-content:left}@media(max-width:47.938rem){.footer-nl-social .success-reg .see-more-container{-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}}.footer-nl-social .success-reg .sub-title-text{color:#fff;line-height:20px}@media(max-width:47.938rem){.footer-nl-social .success-reg .sub-title-text{-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}}.in-art-ty h2,.right-cont h2{color:#1b1b1b;font-size:1.375rem;font-weight:700;line-height:30.8px;margin-bottom:.75rem}@media(max-width:64rem){.in-art-ty h2,.right-cont h2{font-size:2rem;line-height:42px;margin-bottom:1rem}}@media(max-width:47.938rem){.in-art-ty h2,.right-cont h2{font-size:1.5rem;line-height:33.6px;margin-bottom:.25rem}}.in-art-ty .see-more-container,.right-cont .see-more-container{-webkit-box-align:left;-ms-flex-align:left;align-items:left;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:left;-ms-flex-pack:left;justify-content:left;margin-top:1rem}@media(max-width:64rem){.in-art-ty .see-more-container,.right-cont .see-more-container{margin-bottom:.75rem}}@media(max-width:47.938rem){.in-art-ty .see-more-container,.right-cont .see-more-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}}.in-art-ty .see-more-container .see-more-btn,.right-cont .see-more-container .see-more-btn{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:#3557ff;border-radius:4px;color:#fff;cursor:pointer;display:-webkit-box;display:-ms-flexbox;display:flex;font-size:1.125rem;font-weight:600;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;line-height:28.8px;min-width:150px;padding:8px 16px;text-decoration:none}.in-art-ty .sub-title-text,.right-cont .sub-title-text{font-size:1.125rem;line-height:28.8px}.vn-scrim:before{background:hsla(0,0%,100%,.8);content:"";height:100%;left:0;opacity:0;position:fixed;top:0;width:100%;visibility:hidden;z-index:100000;-webkit-transition:all .4s ease;transition:all .4s ease}@media(min-width:64.0625rem){.vn-scrim:before{-webkit-transition-delay:.2s;transition-delay:.2s}}.vn-scrim.vn-open:before{opacity:1;visibility:visible;-webkit-transition-delay:0s;transition-delay:0s}@media(min-width:64.0625rem){.vn-scrim.vn-open:before :not(.lite){visibility:hidden}}html body{margin-top:3rem;padding-top:0;-webkit-font-smoothing:antialiased}@media(max-width:37.5rem){html body main{margin-top:1rem}}@media(min-width:64.0625rem){html body{margin-top:0}}html.class-bg-ghost{background:#f8f8f8}.vn-typeahead-suggestions{background:#fff;border-radius:5px;-webkit-box-shadow:none;box-shadow:none;left:0!important;margin:0 8px!important;height:24.875rem;overflow:hidden;top:6.875rem!important;width:calc(100% - 1rem)}.vn-typeahead-suggestions .webmd-autocomplete-suggestion__wrap{border:0;border-radius:0}@media(min-width:64.0625rem){.vn-typeahead-suggestions.lite{top:8.625rem!important}}@media(min-width:37.5rem){.vn-typeahead-suggestions{max-width:calc(400px - 1rem)!important}}.webmd-autocomplete-suggestion{z-index:1000000!important}.vn-skip-to-main{background:#fff;border-radius:0 0 5px 5px;color:#1b1b1b;display:block;height:1.875rem;padding:.3rem;margin:0 .5rem;position:fixed;text-decoration:none;top:-100px;-webkit-transition:top .3s ease;transition:top .3s ease;z-index:100001}.vn-skip-to-main:focus{top:0}.vn-wrapper{background:#00157c;-webkit-box-sizing:border-box;box-sizing:border-box;font-family:Source Sans Pro,Arial,sans-serif;position:fixed;top:0;-webkit-transition:transform .5s ease;transition:transform .5s ease;width:100%;z-index:100000}@media(min-width:64.0625rem){.vn-wrapper.lite{padding:0 1.5rem}}.vn-wrapper.no-stick{position:relative}.vn-wrapper *{-webkit-box-sizing:border-box;box-sizing:border-box;font-family:Source Sans Pro,Arial,sans-serif;letter-spacing:normal}.vn-wrapper.vn-slide-up{-webkit-transform:translateY(-100%);transform:translateY(-100%)}@media(min-width:64.0625rem){.vn-wrapper{position:relative}}@media(max-width:81.25rem){.vn-wrapper{padding:0 1rem}}.vn-wrapper .vn-dt{display:none!important}@media(min-width:64.0625rem){.vn-wrapper .vn-dt{display:block!important}}.vn-wrapper .vn-mt{display:block}@media(min-width:64.0625rem){.vn-wrapper .vn-mt{display:none!important}}.vn-wrapper .vn-hidden{visibility:hidden!important}.vn-wrapper .vn-trans{opacity:0}.vn-wrapper .vn-none{display:none!important}@media(min-width:64.0625rem){.vn-wrapper .vn-none{display:none!important}}.vn-wrapper .vn-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;height:3rem;margin:0 auto;max-width:77.5rem;z-index:1}@media(min-width:64.0625rem){.vn-wrapper .vn-container{height:4.6875rem}}.vn-wrapper .vn-container.lite{max-width:100%}@media(min-width:64.0625rem){.vn-wrapper .vn-container.lite{height:3.5rem}}.vn-wrapper .vn-menu-btn{-webkit-box-align:center;-ms-flex-align:center;align-items:center;background:none;border:0;color:#fff;cursor:pointer;display:-webkit-box;display:-ms-flexbox;display:flex;height:100%;line-height:1;padding:0}.vn-wrapper .vn-menu-btn:not(.lite){margin-right:1.166875rem}@media(min-width:64.0625rem){.vn-wrapper .vn-menu-btn:not(.lite){margin-right:0}}.vn-wrapper .vn-menu-btn i{font-size:2.25rem;width:2.25rem;overflow:hidden}.vn-wrapper .vn-menu-btn svg{fill:currentColor;pointer-events:none}.vn-wrapper .vn-menu-btn.vn-search i{font-size:1.875rem;width:1.875rem}.vn-wrapper .vn-menu-btn.vn-search:not(.lite){margin-right:0}@media(min-width:64.0625rem){.vn-wrapper .vn-menu-btn.vn-search:not(.lite) i{font-size:1.625rem;width:1.625rem}}.vn-wrapper .vn-menu-btn.vn-search.lite i{font-size:2rem;width:2rem}.vn-wrapper .vn-logo-container{-webkit-box-align:center;-ms-flex-align:center;align-items:center;display:-webkit-box;display:-ms-flexbox;display:flex}.vn-wrapper .vn-logo-container .vn-logo-div{height:.9375rem;margin:0 .625rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container .vn-logo-div{height:1.5625rem;margin:0 1.25rem}}.vn-wrapper .vn-logo-container .vn-logo,.vn-wrapper .vn-logo-container .vn-prog-logo{line-height:1}.vn-wrapper .vn-logo-container .vn-logo img,.vn-wrapper .vn-logo-container .vn-prog-logo img{display:block;height:1.3125rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container .vn-logo img,.vn-wrapper .vn-logo-container .vn-prog-logo img{height:1.625rem}.vn-wrapper .vn-logo-container .vn-logo img:not(.lite){width:7.25rem}}.vn-wrapper .vn-logo-container.with-program .vn-logo img{height:.875rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container.with-program .vn-logo img{height:1.4375rem}}.vn-wrapper .vn-logo-container.with-program .vn-prog-logo img{height:.9375rem}@media(min-width:64.0625rem){.vn-wrapper .vn-logo-container.with-program .vn-prog-logo img{height:1.5625rem}}.vn-wrapper .vn-links{background:#f9f9fc;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;height:calc(100vh - 3rem);left:-140vw;overflow:auto;padding:.5rem;position:fixed;top:3rem;-webkit-transition:left .5s ease;transition:left .5s ease;width:100%;z-index:100}@media(min-width:37.5rem){.vn-wrapper .vn-links{max-width:25rem}}@media(min-width:64.0625rem){.vn-wrapper .vn-links.lite{height:calc(100vh - 3.5rem);top:3.5rem}.vn-wrapper .vn-links:not(.lite){background:none;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-ms-flex-direction:row;flex-direction:row;height:100%;left:0;max-width:100%;overflow:visible;padding:0;position:relative;top:0}}.vn-wrapper .vn-links.open{left:0}.vn-wrapper .vn-links.open.vn-slide-out{left:-100vw}@media(min-width:37.5rem){.vn-wrapper .vn-links.open.vn-slide-out{left:0}}.vn-wrapper .vn-links .vn-search-wrapper{display:-webkit-box;display:-ms-flexbox;display:flex;height:3rem;margin-bottom:.25rem;-webkit-box-ordinal-group:0;-ms-flex-order:-1;order:-1}@media(min-width:64.0625rem){.vn-wrapper .vn-links .vn-search-wrapper:not(.lite){background:#fff;border:1px solid #c6cedb;border-radius:5px;opacity:0;-webkit-box-ordinal-group:2;-ms-flex-order:1;order:1;position:absolute;right:2.8125rem;top:.8125rem;width:38%;-webkit-transition:all .3s ease;transition:all .3s ease;visibility:hidden}.vn-wrapper .vn-links .vn-search-wrapper:not(.lite).vn-open{visibility:visible;opacity:1}.vn-wrapper .vn-links .vn-search-wrapper:not(.lite) input{border:0;height:2.8125rem}}.vn-wrapper .vn-links .vn-search-wrapper>div{-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1}.vn-wrapper .vn-links .vn-search-wrapper>div>div{width:100%}.vn-wrapper .vn-links .vn-search-wrapper input{border:1px solid #cccce7;border-right:0;border-radius:5px 0 0 5px;-webkit-box-flex:1;-ms-flex-positive:1;flex-grow:1;font-size:1.125rem;height:3rem;padding:0 1.375rem}.vn-wrapper .vn-links .vn-search-wrapper input::-webkit-input-placeholder{color:#7f888f}.vn-wrapper .vn-links .vn-search-wrapper input::-moz-placeholder{color:#7f888f}.vn-wrapper .vn-links .vn-search-wrapper 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class="subnav-chapter toc-link" data-v-1313202e><a class="subnav-chapter-title" href="https://www.webmd.com/skin-problems-and-treatments/default.htm" data-v-1313202e> View Full Guide </a></li></ul></div></div><span data-v-1313202e></span></section></div><div class="webmd-row pane" style="" id="ContentPane30" tabindex="-1"><article class="article medref" data-chronicle="091e9c5e81e52377" data-e2e="dart-medref" data-page="1" data-module-type="dynamic-article" data-artid="091e9c5e80007bf3" style=""><script type="application/ld+json"></script><script type="application/ld+json"></script><div class="inner-article-container"><header><h1>Rashes</h1></header><div class="med-wrap"><div><div class="asset-med-rev"><div class="reviewer-info" data-chronicle="091e9c5e81e52377" data-e2e="asset-medical-review" data-metrics-module="rvdby-lnk"><span class="reviewer-photo-cont"><figure><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/biographies/sachdev_poonam_382x382.jpg?resize=51px:51px&output-quality=75" class="reviewer-photo"></figure></span><span class="seperatorLine reviewer-txt">Medically Reviewed by <a class="person" href="https://www.webmd.com/bio/poonam-sachdev" data-metrics-link="0">Poonam Sachdev</a><span class="no-link"></span><span class="revDate"> on November 21, 2023</span></span></div><div class="byline"><span><span class="authors" data-metrics-module="wrtnby-lnk">Written by <a href="https://www.webmd.com/bio/kristin-mitchell" class="person" data-metrics-link="0">Kristin Mitchell</a>, <a href="https://www.webmd.com/bio/webmd-editorial-contributors" class="person" data-metrics-link="1">WebMD Editorial Contributor</a></span></span></div></div></div></div><aside class="oncology-article-nav" data-metrics-module="cwnav-art"><ul class="nav-items desktop"><li><a href="#091e9c5e80007bf3-1-1">What Are Rashes?</a></li><li><a href="#091e9c5e80007bf3-1-2">Symptoms of Rashes</a></li><li><a href="#091e9c5e80007bf3-1-3">Causes of Rashes</a></li><li><a href="#091e9c5e80007bf3-1-4">Common Skin Rash Types</a><div class="item-button"><a href="#"></a></div></li><li><a href="#091e9c5e80007bf3-3-7">Diagnosing Rashes</a></li><li><a href="#091e9c5e80007bf3-3-8">Treatment for Rashes</a></li><li><a href="#091e9c5e80007bf3-4-10">Complications of Rashes</a></li><li><a href="#091e9c5e80007bf3-4-11">How to Prevent Rashes</a></li><li class="item-button"></li></ul></aside><div class="reading-wrapper"><div class="readtime"><span>6 min read</span></div><div id="audio-placeholder-091e9c5e80007bf3"></div></div><div class="article__body" data-metrics-module="embd-lnk"><div class="article-page active-page" data-page="1"><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-1-1">What Are Rashes?</h2><p>Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes.</p><p>There are many types of rashes, including those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.</p><div id="art-091e9c5e80007bf3-em-image-1" class="em-mod-image" ref="art-091e9c5e80007bf3-em-image-1"> <aside data-e2e="ia-image" align="middle" class="ia-module-container ia-image landscape " data-metric-module="ia-img-soc"> <figure> <div class="main"> <img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/articles/health_tools/eczema_in_older_adults_slideshow/1800ss_getty_rf_atopic_dermatitis.jpg?resize=750px:*&output-quality=75" alt="photo of atopic dermatitis"/> </div> <figcaption> <p class="module_description" > Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Atopic dermatitis, which can cause an itchy rash, is one of the most common forms of eczema. (Photo credit: Moment/Getty Images) </p> </figcaption> </figure> </aside> </div></section><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-1-2">Symptoms of Rashes</h2><p>The symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include:</p><ul><li>Blistering</li><li>Redness</li><li>Scaly or dry skin</li><li>Similarity to hives</li><li>Blotchiness</li><li>Swelling or inflammation</li><li>Itchy skin</li><li>Pain</li><li>Infection of the areas of broken skin</li><li>Shiny, flat-topped bumps</li><li>Large affected areas of skin</li><li>Circular-shaped affected areas</li></ul><p> </p></section><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-1-3">Causes of Rashes</h2><p>Irritants and allergens in the climate/environment can cause rashes on the skin. Other common causes include:</p><ul><li>Viral or bacterial infections</li><li>Skin conditions such as rosacea or eczema</li><li>Stress</li><li>Skin irritants (including soaps, <a href="https://www.webmd.com/beauty/skin-care-products" data-crosslink-type="article">skin care products</a>, or some fabrics)</li><li>Personal and/or family history of allergies, hay fever, or asthma</li><li>Allergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis</li><li>Triggering agents from other conditions, such as hepatitis B or hepatitis C</li></ul><p> Some causes and triggers for rashes are unknown.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-1-4">Common Skin Rash Types</h2><p>Some common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.</p><p><strong>Eczema</strong></p><p>Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and <a href="https://www.webmd.com/skin-problems-and-treatments/eczema/eczema-basics" data-crosslink-type="article">atopic dermatitis</a> (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious.</p><p>The way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp.</p><p>Some things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition.</p><p><strong>Hives</strong></p><p>Hives is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections.</p></section></div><div class="article-page " data-page="2"><section> <p><strong>Contact dermatitis</strong></p><p>The type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness.</p><p><strong>Granuloma annulare </strong></p><p>Granuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy.</p><p>If you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy.</p><p><strong>Lichen planus</strong></p><p><a href="https://www.webmd.com/oral-health/oral-lichen-planus">Lichen planus</a> is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins.</p></section><section><pagebreak /> <p>Lichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people.</p><p><strong>Pityriasis rosea</strong></p><p>Pityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary.</p><p><a href="https://www.webmd.com/skin-problems-and-treatments/whats-pityriasis-rosea">Pityriasis rosea</a> affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person.</p><p><strong>Viral conditions. </strong>Rashes on the skin can be the result of a viral infection such as measles or chickenpox.</p><p><strong>Psoriasis. </strong>This skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents.</p><p> </p></section></div><div class="article-page " data-page="3"><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-3-7">Diagnosing Rashes</h2><p>Diagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as:</p><ul><li><strong>Skin biopsy.</strong><a data-crosslink-type="article" href="https://www.webmd.com/cancer/what-is-a-biopsy">This involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria.</a> (see <a href="https://www.webmd.com/skin-problems-and-treatments/eczema/treatment-16/eczema-symptoms" id="c28e2e0b-804d-4b91-b535-920ba3ac9bc0">symptoms and diagnosis of eczema</a>)</li><li><strong>Blood test.</strong> Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected.</li><li><strong>Allergy test.</strong> These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions.</li></ul></section><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-3-8">Treatment for Rashes</h2><p>The treatment your doctor recommends will depend on the cause of your skin rash.<strong></strong>Some treatment options include:</p><p><strong>Over-the-counter and prescription creams and ointments.</strong> You can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as ceramides, glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema.</p></section><section> <p>In more severe cases, prescription-strength cortisone creams are also used.</p><p><strong>Steroids. </strong>If you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin.</p><p><strong>Topical immunomodulators.</strong> For people with mild-to-moderate eczema, topical immunomodulators can help. These medications, including brand name products Elidel and Protopic<a data-crosslink-type="article">,</a> work by changing the body's immune response to allergens, thereby preventing flare-ups.</p><p><strong>Shots (injections).</strong> Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the <a href="https://www.webmd.com/skin-problems-and-treatments/why-so-itchy" data-crosslink-type="article">itch</a> quickly in most patients. Cortisone shots can also be used in more severe cases.</p><p><strong>Phototherapy</strong><a data-crosslink-type="article" href="https://www.webmd.com/depression/what-is-phototherapy"><strong> (light therapy).</strong></a> This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases.</p><p>Risks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks.</p><p><strong>Anti-itch products or allergy medications such as antihistamines. </strong>Antihistamines, such as Diphenhydramine or Benadryl<a data-crosslink-type="article">,</a> can help soothe the itchiness.</p><p><strong>Immunosuppressive medications.</strong> Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your <a href="https://www.webmd.com/cold-and-flu/immune-system-function">immune system.</a></p><p> </p><p> </p><p> </p></section></div><div class="article-page " data-page="4"><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-4-10">Complications of Rashes</h2><p>Rashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include:</p><p><strong>Infection.</strong> When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection.</p><p><strong>Anaphylaxis. </strong>In addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as <a href="https://www.webmd.com/allergies/anaphylaxis">anaphylaxis</a>. The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen.</p></section><section><h2 class="jumplink-headers" id="091e9c5e80007bf3-4-11">How to Prevent Rashes</h2><p>There are ways to lessen your risk and prevent flare-ups<a id="1b20a9ce-7b34-433c-9553-7daa87f95843"> such as those associated with atopic eczema</a>:</p><ul><li>Reduce stress<a data-crosslink-type="article" href="https://www.webmd.com/balance/stress-management/stress-management">.</a></li><li>Avoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents.</li><li>Moisturize often.</li><li>Avoid sudden changes in temperature or humidity.</li><li>Avoid situations that cause <a href="https://www.webmd.com/skin-problems-and-treatments/hyperhidrosis2">sweating</a> and overheating.</li><li>Immediately wash your hands when you come into contact with something you're allergic to.</li></ul><p> 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Mitchell most recently was an editor for a medical journal specializing in rheumatology. She also wrote and edited for Bloomberg Industry Group, focusing on human resources news, and worked as a producer for Gannett\u002FUSA Today editing content for some of their regional newspapers.\u003C\u002Fp\u003E\u003Cp\u003EMitchell\u003Cspan\u003E \u003C\u002Fspan\u003Ehas a BA in English\u002FJournalism from Wake Forest University and a Professional Sequence in Editing certification from UC Berkeley Extension. She is a member of the Council of Science Editors.\u003C\u002Fp\u003E\u003Cp\u003EMitchell’s home life revolves around loving and nurturing her fraternal twin boys and toddler daughter while also trying to persuade them to stop growing up. With any spare time, Mitchell tries to find rest.\u003C\u002Fp\u003E"},"person_photo":{"directive":"imageurl","chronic_id":"e034f0b7-b802-4429-87b7-3225f22d3cea","path":"\u002Fwebmd\u002Fconsumer_assets\u002Fsite_images\u002Farticles\u002Fbiographies\u002F382x382_kristin_mitchell.jpg","object_type":"wbmd_cons_img"},"related_links_header":"","related_links_text":{"#cdata-section":""}}},"link_friendlyurl":"https:\u002F\u002Fwww.webmd.com\u002Fbio\u002Fkristin-mitchell"}},{"aspen_id":"84742cb6-cdab-4075-ae08-42f4d6f46319","wbmd_first_nm":"","wbmd_middle_name":"","wbmd_lst_nm":"WebMD Editorial Contributor","wbmd_person_prof_ttl":"","wbmd_bio_obj_id":{"directive":"friendlyurl","object_type":"wbmd_cons_article","chronic_id":"091e9c5e821c6dec","legacy_id":"091e9c5e821c6dec","content_section":{"cons_bio":{"title":"WebMD Editorial Contributors","bio_text":{"#cdata-section":"\u003Cp\u003EWebMD Editorial Contributors include writers, editors, and medical and wellness professionals who are trained in creating high-quality health content that is timely, accurate, informative, and easy to understand. All professionals who create content for WebMD must follow strict guidelines to ensure they provide credible and authoritative health information that is editorially independent, free from advertiser influence, and reflects the standards readers have come to expect from WebMD. \u003C\u002Fp\u003E"},"related_links_header":"","related_links_text":{"#cdata-section":""}}},"link_friendlyurl":"https:\u002F\u002Fwww.webmd.com\u002Fbio\u002Fwebmd-editorial-contributors"}}]},"wbmd_bus_ref":{"wbmd_disp_nm":"Medical Reference"},"wbmd_cpyrt":{"wbmd_copyright":{"wbmd_copyright_statement":"© 2023 WebMD, LLC. All rights reserved."}},"wbmd_prim_med_revr":{"aspen_id":"23defd8f-6b81-479f-9210-facf9dfbb768","wbmd_first_nm":"Poonam","wbmd_middle_name":"","wbmd_lst_nm":"Sachdev","wbmd_person_prof_ttl":"","wbmd_bio_obj_id":{"directive":"friendlyurl","object_type":"wbmd_cons_article","chronic_id":"091e9c5e821c3d82","legacy_id":"091e9c5e821c3d82","link_friendlyurl":"https:\u002F\u002Fwww.webmd.com\u002Fbio\u002Fpoonam-sachdev","content_section":{"cons_bio":{"title":"Poonam Sachdev, MD","bio_text":{"#cdata-section":"\u003Cp\u003EPoonam Sachdev, MD, obtained her bachelor’s degree in medicine and surgery (MBBS) from Madras Medical College, Chennai, India. She graduated from the University of Gujarat in 2003 with a Doctor of Medicine (MD) degree, specializing in pediatrics. Since 2008, she has had extensive experience in writing on various medical topics for the general public and for doctors. Her special interests include working for underprivileged children. When not working, she likes spending time in her garden and reading.\u003C\u002Fp\u003E"},"person_photo":{"directive":"imageurl","_chronic_id":"34052e46-a9e1-49f9-a924-dbdcab569ae8","path":"\u002Fwebmd\u002Fconsumer_assets\u002Fsite_images\u002Farticles\u002Fbiographies\u002Fsachdev_poonam_382x382.jpg","object_type":"wbmd_cons_img"},"related_links_header":"","related_links_text":{"#cdata-section":""}}}},"name":"Poonam Sachdev","photo":"https:\u002F\u002Fimg.lb.wbmdstatic.com\u002Fvim\u002Flive\u002Fwebmd\u002Fconsumer_assets\u002Fsite_images\u002Farticles\u002Fbiographies\u002Fsachdev_poonam_382x382.jpg","bioUrl":"https:\u002F\u002Fwww.webmd.com\u002Fbio\u002Fpoonam-sachdev","intro":"","header":""},"wbmd_prim_revw_dt":"11\u002F21\u002F2023 14:30:00","wbmd_orig_pub_dt":"01\u002F17\u002F2006 20:00:00","wbmd_first_live_dt":"03\u002F27\u002F2009 01:00:00","wbmd_c_prim_top_id":{"wbmd_disp_nm":"Eczema"},"wbmd_c_sec_med_revw_dt":"","wbmd_suppress_infinite":"0"}},"module_data":{"content_section":{"cons_health_ref":{"title":"Rashes","thumbnail_image":{"directive":"imageurl","_chronic_id":"823508bf-f483-4961-b3a9-5261240059f0","path":"\u002Fwebmd\u002Fconsumer_assets\u002Fsite_images\u002Farticles\u002Fhealth_tools\u002Feczema_in_older_adults_slideshow\u002F1800ss_getty_rf_atopic_dermatitis.jpg","object_type":"wbmd_cons_img","name":"1800ss_getty_rf_atopic_dermatitis.jpg","description":"medical atopic eczema allergy texture of ill human skin","height":"1200","width":"1800","source":"VIM","credit":"Moment \u002F Getty Images","contentURL":"\u002Fwebmd\u002Fconsumer_assets\u002Fsite_images\u002Farticles\u002Fhealth_tools\u002Feczema_in_older_adults_slideshow\u002F1800ss_getty_rf_atopic_dermatitis.jpg"},"section_groups":{"#cdata-section":"\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"1\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"1\" \u002F\u003E\u003Csection_header\u003EWhat Are Rashes?\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003ERashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes.\u003C\u002Fp\u003E\u003Cp\u003EThere are many types of rashes, including those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.\u003C\u002Fp\u003E\u003Cembeded_module class=\"wbmdembededmodule cke_widget_inline\" align=\"middle\" suppress_from_site=\"false\" suppress_from_fed=\"false\" suppress_share=\"false\" thumbnail=\"\u002Fwebmd\u002Fconsumer_assets\u002Fsite_images\u002Farticles\u002Fhealth_tools\u002Feczema_in_older_adults_slideshow\u002F1800ss_getty_rf_atopic_dermatitis.jpg\" _chronic_id=\"823508bf-f483-4961-b3a9-5261240059f0\" asset_title=\"\" asset_description=\"Eczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Atopic dermatitis, which can cause an itchy rash, is one of the most common forms of eczema. (Photo credit: Moment\u002FGetty Images)\" module_title=\"\" module_description=\"\" link_out_url=\"\" link_out_position=\"\" type=\"image\" height=\"1200\" width=\"1800\" alt=\"photo of atopic dermatitis\" aspen_id=\"823508bf-f483-4961-b3a9-5261240059f0\"\u003E\u003C\u002Fembeded_module\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ESymptoms of Rashes\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EThe symptoms that come along with a skin rash depend on the cause and type of rash. Some common symptoms include:\u003C\u002Fp\u003E\u003Cul\u003E\u003Cli\u003EBlistering\u003C\u002Fli\u003E\u003Cli\u003ERedness\u003C\u002Fli\u003E\u003Cli\u003EScaly or dry skin\u003C\u002Fli\u003E\u003Cli\u003ESimilarity to hives\u003C\u002Fli\u003E\u003Cli\u003EBlotchiness\u003C\u002Fli\u003E\u003Cli\u003ESwelling or inflammation\u003C\u002Fli\u003E\u003Cli\u003EItchy skin\u003C\u002Fli\u003E\u003Cli\u003EPain\u003C\u002Fli\u003E\u003Cli\u003EInfection of the areas of broken skin\u003C\u002Fli\u003E\u003Cli\u003EShiny, flat-topped bumps\u003C\u002Fli\u003E\u003Cli\u003ELarge affected areas of skin\u003C\u002Fli\u003E\u003Cli\u003ECircular-shaped affected areas\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ECauses of Rashes\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EIrritants and allergens in the climate\u002Fenvironment can cause rashes on the skin. Other common causes include:\u003C\u002Fp\u003E\u003Cul\u003E\u003Cli\u003EViral or bacterial infections\u003C\u002Fli\u003E\u003Cli\u003ESkin conditions such as rosacea or eczema\u003C\u002Fli\u003E\u003Cli\u003EStress\u003C\u002Fli\u003E\u003Cli\u003ESkin irritants (including soaps, \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fbeauty\u002Fskin-care-products\" crosslinktype=\"Article\"\u003Eskin care products\u003C\u002Fa\u003E, or some fabrics)\u003C\u002Fli\u003E\u003Cli\u003EPersonal and\u002For family history of allergies, hay fever, or asthma\u003C\u002Fli\u003E\u003Cli\u003EAllergic to certain medications, including those that treat high blood pressure, heart disease, and arthritis\u003C\u002Fli\u003E\u003Cli\u003ETriggering agents from other conditions, such as hepatitis B or hepatitis C\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003Cp\u003E Some causes and triggers for rashes are unknown.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"2\" \u002F\u003E\u003Csection_header\u003ECommon Skin Rash Types\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003ESome common skin rash types include those caused by skin conditions like eczema, granuloma annulare, lichen planus, and pityriasis rosea.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EEczema\u003C\u002Fstrong\u003E\u003C\u002Fp\u003E\u003Cp\u003EEczema is a general term that describes several different conditions in which skin is inflamed, red, scaly, and itchy. Eczema is a common skin condition, and \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fskin-problems-and-treatments\u002Feczema\u002Feczema-basics\" crosslinktype=\"Article\"\u003Eatopic dermatitis\u003C\u002Fa\u003E (also called atopic eczema) is one of the most common forms of eczema. It can affect adults or children and isn’t contagious.\u003C\u002Fp\u003E\u003Cp\u003EThe way eczema looks can vary from person to person. In adults, eczema most often affects the hands, elbows, and back of your knees. In young children, eczema often also shows up on the face, back of the neck, and scalp.\u003C\u002Fp\u003E\u003Cp\u003ESome things can trigger a flare-up of eczema or make eczema worse, but they don’t cause the condition.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EHives\u003C\u002Fstrong\u003E\u003C\u002Fp\u003E\u003Cp\u003EHives is a skin condition that causes raised, itchy bumps or welts. If you have hives, you could be allergic to something airborne or an insect bite. It can also be caused by changes in the temperature and bacterial infections.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"3\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"2\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003ECommon Skin Rash Types continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003E\u003Cstrong\u003EContact dermatitis\u003C\u002Fstrong\u003E\u003C\u002Fp\u003E\u003Cp\u003EThe type of rash that comes from contact dermatitis happens when your body reacts to irritants such as detergents, fragrances, and chemicals. It can cause inflammation, itchiness, and redness.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EGranuloma annulare \u003C\u002Fstrong\u003E\u003C\u002Fp\u003E\u003Cp\u003EGranuloma annulare is a chronic skin condition. A circular-shaped rash with reddish bumps (papules) is a common symptom. Most often, it affects children and young adults. It's slightly more common in girls and is usually seen in people who are otherwise healthy.\u003C\u002Fp\u003E\u003Cp\u003EIf you have granuloma annulare, you'll usually notice one or more rings of small, firm bumps over the back of your forearms, hands, or feet. The rash may be mildly itchy.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003ELichen planus\u003C\u002Fstrong\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Foral-health\u002Foral-lichen-planus\"\u003ELichen planus\u003C\u002Fa\u003E is a common skin condition that causes shiny, flat-topped bumps. They often have an angular shape and a reddish-purplish color. Lichen planus can show up anywhere on the skin but often affects the insides of your wrists and ankles, lower legs, back, and neck. Some people have lichen planus inside their mouth, genital region, scalp, and nails. Thick collections of bumps may occur, especially on the shins.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"4\" \u002F\u003E\u003Cpagebreak \u002F\u003E\u003Csection_header is_continued=\"true\"\u003ECommon Skin Rash Types continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003ELichen planus most often affects adults ages 30-70 years. It isn’t common in very young or elderly people.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EPityriasis rosea\u003C\u002Fstrong\u003E\u003C\u002Fp\u003E\u003Cp\u003EPityriasis rosea is a common skin rash that is usually mild. The condition often begins with a large, scaly, pink patch of skin on your chest or back. Next, you’ll notice one patch of pink skin quickly followed by more. Your skin will be itchy and red or inflamed. The number and sizes of spots can vary.\u003C\u002Fp\u003E\u003Cp\u003E\u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fskin-problems-and-treatments\u002Fwhats-pityriasis-rosea\"\u003EPityriasis rosea\u003C\u002Fa\u003E affects the back, neck, chest, abdomen, upper arms, and legs. The rash can differ from person to person.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EViral conditions. \u003C\u002Fstrong\u003ERashes on the skin can be the result of a viral infection such as measles or chickenpox.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EPsoriasis. \u003C\u002Fstrong\u003EThis skin condition causes a rash is thick and scaly and usually appears on the knees, back, elbows, genitals, and scalp. It is permanent and can be passed down from your parents.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"5\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"3\" \u002F\u003E\u003Csection_header\u003EDiagnosing Rashes\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EDiagnosing a skin rash can be hard because the symptoms can be caused by many things. Your doctor will check your skin and ask about your symptoms and may decide to diagnose your rash using tests such as:\u003C\u002Fp\u003E\u003Cul\u003E\u003Cli\u003E\u003Cstrong\u003ESkin biopsy.\u003C\u002Fstrong\u003E\u003Ca crosslinktype=\"Article\" link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fcancer\u002Fwhat-is-a-biopsy\"\u003EThis involves taking a small bit of skin from the affected area and sending it to a lab for testing for a virus or bacteria.\u003C\u002Fa\u003E (see \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fskin-problems-and-treatments\u002Feczema\u002Ftreatment-16\u002Feczema-symptoms\" id=\"c28e2e0b-804d-4b91-b535-920ba3ac9bc0\"\u003Esymptoms and diagnosis of eczema\u003C\u002Fa\u003E)\u003C\u002Fli\u003E\u003Cli\u003E\u003Cstrong\u003EBlood test.\u003C\u002Fstrong\u003E Your doctor can diagnose certain diseases by looking at antibodies in your blood. Also, rashes can be the result of systemic conditions, and blood tests can help to check how your organs may be affected.\u003C\u002Fli\u003E\u003Cli\u003E\u003Cstrong\u003EAllergy test.\u003C\u002Fstrong\u003E These tests include skin pricks or patch tests to look for allergens. During the test, your skin is exposed to certain allergens to detect any potential reactions.\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003ETreatment for Rashes\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EThe treatment your doctor recommends will depend on the cause of your skin rash.\u003Cstrong\u003E\u003C\u002Fstrong\u003ESome treatment options include:\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EOver-the-counter and prescription creams and ointments.\u003C\u002Fstrong\u003E You can treat rashes caused by skin conditions like eczema with moisturizers that are fragrance-free and contain ingredients such as ceramides, glycerin, and mineral oil. Medications include over-the-counter creams and ointments containing the steroid hydrocortisone (for example, Cortizone-10, Cort-Aid, Dermarest Eczema, Neosporin Eczema). These products may help control the itching, swelling, and redness linked to eczema.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"6\" \u002F\u003E\u003Csection_header is_continued=\"true\"\u003ETreatment for Rashes continued...\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EIn more severe cases, prescription-strength cortisone creams are also used.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003ESteroids. \u003C\u002Fstrong\u003EIf you have ongoing symptoms, your doctor may prescribe topical or oral steroid treatment, which can help with itchy and inflamed skin.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003ETopical immunomodulators.\u003C\u002Fstrong\u003E For people with mild-to-moderate eczema, topical immunomodulators can help. These medications, including brand name products Elidel and Protopic\u003Ca crosslinktype=\"Article\"\u003E,\u003C\u002Fa\u003E work by changing the body's immune response to allergens, thereby preventing flare-ups.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EShots (injections).\u003C\u002Fstrong\u003E Injections can be used to treat rashes that come from certain skin conditions. Dupilumab (Dupixent), for example, is an injectable monoclonal antibody used in patients with moderate-to-severe atopic dermatitis. It clears the \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fskin-problems-and-treatments\u002Fwhy-so-itchy\" crosslinktype=\"Article\"\u003Eitch\u003C\u002Fa\u003E quickly in most patients. Cortisone shots can also be used in more severe cases.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EPhototherapy\u003C\u002Fstrong\u003E\u003Ca crosslinktype=\"Article\" link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fdepression\u002Fwhat-is-phototherapy\"\u003E\u003Cstrong\u003E (light therapy).\u003C\u002Fstrong\u003E\u003C\u002Fa\u003E This is another treatment that helps some people with eczema. Phototherapy uses ultraviolet light, either ultraviolet A (UVA) or ultraviolet B (UVB), from special lamps to treat people with severe cases.\u003C\u002Fp\u003E\u003Cp\u003ERisks linked to phototherapy include burning (usually resembling a mild sunburn), dry skin, itchy skin, freckling, and potential premature aging of the skin. Your health care professionals will work with you to lessen any risks.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EAnti-itch products or allergy medications such as antihistamines. \u003C\u002Fstrong\u003EAntihistamines, such as Diphenhydramine or Benadryl\u003Ca crosslinktype=\"Article\"\u003E,\u003C\u002Fa\u003E can help soothe the itchiness.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EImmunosuppressive medications.\u003C\u002Fstrong\u003E Medications including steroid shots, prednisone, or other drugs can help clear up a rash by suppressing your \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fcold-and-flu\u002Fimmune-system-function\"\u003Eimmune system.\u003C\u002Fa\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Cpagebreak type=\"mobile\" order=\"7\" \u002F\u003E\u003Cpagebreak type=\"desktop\" order=\"4\" \u002F\u003E\u003Csection_header\u003EComplications of Rashes\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003ERashes on the skin aren't usually problematic and respond well to treatment. Some possible complications include:\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EInfection.\u003C\u002Fstrong\u003E When you scratch an itchy rash, it opens your skin. This allows pathogens such as bacteria to enter, putting you at risk of infection.\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstrong\u003EAnaphylaxis. \u003C\u002Fstrong\u003EIn addition to a skin rash, some people can have a severe allergic reaction that is life-threatening, also known as \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fallergies\u002Fanaphylaxis\"\u003Eanaphylaxis\u003C\u002Fa\u003E. The extreme swelling that happens in anaphylaxis can close your air passages. An immediate injection with epinephrine (EpiPen) is needed to act against the allergic reaction. If you have an itchy feeling in your mouth or throat with your skin rash, talk to your doctor about the need for an EpiPen.\u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E\u003Csection_group\u003E\u003Csection_header\u003EHow to Prevent Rashes\u003C\u002Fsection_header\u003E\u003Csection_text\u003E\u003Cp\u003EThere are ways to lessen your risk and prevent flare-ups\u003Ca id=\"1b20a9ce-7b34-433c-9553-7daa87f95843\"\u003E such as those associated with atopic eczema\u003C\u002Fa\u003E:\u003C\u002Fp\u003E\u003Cul\u003E\u003Cli\u003EReduce stress\u003Ca crosslinktype=\"Article\" link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fbalance\u002Fstress-management\u002Fstress-management\"\u003E.\u003C\u002Fa\u003E\u003C\u002Fli\u003E\u003Cli\u003EAvoid scratchy materials (for example, wool) and chemicals that can be triggers, such as harsh soaps, detergents, and solvents.\u003C\u002Fli\u003E\u003Cli\u003EMoisturize often.\u003C\u002Fli\u003E\u003Cli\u003EAvoid sudden changes in temperature or humidity.\u003C\u002Fli\u003E\u003Cli\u003EAvoid situations that cause \u003Ca link_friendlyurl=\"https:\u002F\u002Fwww.webmd.com\u002Fskin-problems-and-treatments\u002Fhyperhidrosis2\"\u003Esweating\u003C\u002Fa\u003E and overheating.\u003C\u002Fli\u003E\u003Cli\u003EImmediately wash your hands when you come into contact with something you're allergic to.\u003C\u002Fli\u003E\u003C\u002Ful\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003C\u002Fsection_text\u003E\u003Chighlights\u003E\u003C\u002Fhighlights\u003E\u003Cpull_quotes\u003E\u003C\u002Fpull_quotes\u003E\u003C\u002Fsection_group\u003E"},"citations":{"#cdata-section":"\u003Cp\u003E\u003Cspan class=\"credits\"\u003ESOURCES:\u003C\u002Fspan\u003E \u003C\u002Fp\u003E\u003Cp\u003EAmerican Academy of Dermatology. \u003C\u002Fp\u003E\u003Cp\u003EAustralasian College of Dermatology.\u003C\u002Fp\u003E\u003Cp\u003ENational Organization for Rare Disorders – Photo Caption\u003C\u002Fp\u003E\u003Cp\u003EDermNet NZ – Photo Caption\u003C\u002Fp\u003E\u003Cp\u003ECleveland Clinic: “Skin Rash,” “Anaphylaxis.”\u003C\u002Fp\u003E"},"related_links_header":"","related_links_text":{"#cdata-section":""}}}}}},"staticPublicPath":"\u002Fstatic_vue\u002F091e9c5e81e52376\u002Fclient\u002F","isInteractivePage":false},"flow":{"flowInfo":{"guideArticle":{"assetId":"091e9c5e80008819","channelId":"1105","ctgryTitle":"Acute Skin Conditions","ctgryUrl":"https:\u002F\u002Fwww.webmd.com\u002Fskin-problems-and-treatments\u002Funderstanding-dermatitis-basics","category":"gd","contentType":"Article"}}},"quiz":{"rmq":{}}}</script> <script>window.__INITIAL_STATE__.route.hash = window.location.hash; window.__INITIAL_STATE__.route.fullPath = window.location.pathname; window.__INITIAL_STATE__.route.path = window.location.pathname; if(window.location.search !== ""){ var search = window.location.search.substring(1); window.__INITIAL_STATE__.route.query=JSON.parse('{"' + search.replace(/&/g, '","').replace(/=/g,'":"') + '"}', function(key, value) { return key===""?value:decodeURIComponent(value) }) } else {window.__INITIAL_STATE__.route.query={};}</script><script>try{var _comscore=_comscore||[];_comscore.push({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}}),function(){var e=document.createElement('script'),o=document.getElementsByTagName('script')[0];e.async=!0,e.src='https://sb.scorecardresearch.com/cs/6035829/beacon.js',o.parentNode.insertBefore(e,o),window.__INITIAL_STATE__?window.document.addEventListener('before_pv',function(){window.document.addEventListener('onAdobeOmniBeforePv',function(){window.biConsumerIsReady&&self.COMSCORE&&COMSCORE.beacon({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}})})},{once:!0}):window.document.addEventListener('onAdobeOmniBeforePv',function(){self.COMSCORE&&COMSCORE.beacon({c1:'2',c2:'6035829',options:{enableFirstPartyCookie:!0}})})}()}catch(e){}</script><noscript><img src='https://sb.scorecardresearch.com/p?c1=2&c2=6035829&cv=3.9.1&cj=1'></noscript>  <script id="cookieConsentScriptNonEU" async="async" src="https://img.lb.wbmdstatic.com/webmd_static_vue/file-explorer/webmd/consumer_assets/site_images/webmd-ccm/webmd-ccm-lite.min.js"></script><script type="text/javascript" async="async" importance="high" src="https://securepubads.g.doubleclick.net/tag/js/gpt.js" id="GPT_JS"></script><script>window.webmd.googleloaded = true; window.googleloaded = true; </script> <script>window.performance.mark('page-end');</script> <link rel="stylesheet" href="//img.lb.wbmdstatic.com/webmd_static_vue/091e9c5e81e52376/client/css/non-critical-1739428704852.5afc32f1.css"> </body> </html>