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button{background:#3557ff;border:0;border-radius:.25rem;color:#fff;font-family:Source Sans Pro,Verdana,sans-serif;font-size:1.125rem;font-weight:600;height:2.8125rem;letter-spacing:.22px;padding:0 1.5625rem;margin-top:.5rem;width:100%}.toc-nl-module .toc-newsletter-content form button:disabled{background:#b3b3b3;color:#676767}.toc-nl-module .toc-newsletter-content form button:hover:not(:disabled){background:#00157c;cursor:pointer}@media(min-width:64rem){.toc-nl-module .toc-newsletter-content form button{height:3.125rem}}@media(min-width:77.438rem){.toc-nl-module .toc-newsletter-content form button{border-radius:0 .3125rem .3125rem 0;font-size:1.375rem;margin-top:0;width:auto}}@media(min-width:64rem){.toc-nl-module .toc-newsletter-content form{margin:1.375rem 0}}.toc-nl-module .toc-newsletter-content .error,.toc-nl-module .toc-newsletter-content 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1.49523 1.17085Z" fill="#3557FF" stroke="#3557FF" stroke-linecap="round" stroke-linejoin="round" data-v-51e7ff38></path></svg></span></div></div></div></div><div class="webmd-row pane" style="" id="ContentPane29" tabindex="-1"></div><div class="webmd-row pane" style="" id="ContentPane30" tabindex="-1"><aside style="display:contents;"></aside><div style="display:contents;" chronic-id="091e9c5e824adbca"><div class="toc-guide-chapters top"><div class="toc-guide-chapter-wrapper"><section class="toc-guide-chapter" data-metrics-module="toc-guide-1"><header><h2><span class="header-counter">1 of 5 / </span> Overview</h2><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergies-overview" data-metrics-link="viewall"> View All </a></header><div class="toc-guide-chapter-content"><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/article_thumbnails/hpt_toc_redesign/hpt_toc_redesign_illustrations/1500x1500_overview_and_facts_option_3.jpg?resize=540px:*&output-quality=75" alt class="toc-guide-chapter-img"><ul class="toc-guide-chapter-links"><li><a href="https://www.webmd.com/allergies/allergy-basics" data-metrics-link="1"><h3>What Is an Allergy?</h3><div><p>This article explains the basics of an allergic reaction. Learn what happens when your immune system goes on high alert.</p></div></a></li><li><a href="https://www.webmd.com/allergies/who-gets-allergies" data-metrics-link="2"><h3>Who Gets Allergies?</h3><div><p>Anyone can get them, at any age. You could develop them as a child, or you might not have any symptoms until you’re an adult.</p></div></a></li><li><a href="https://www.webmd.com/allergies/allergic-reaction-causes" data-metrics-link="3"><h3>What Causes an Allergic Reaction?</h3><div><p>While your problem may seem to start in the nose or the eyes, allergies actually come from an immune system run wild.</p></div></a></li><li><a href="https://www.webmd.com/allergies/asthma-allergies" data-metrics-link="4"><h3>Allergies and Asthma</h3><div><p>Worsening of asthma symptoms can be triggered by allergies, which can temporarily increase the inflammation of the airways.</p></div></a></li></ul></div><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergies-overview" data-metrics-link="viewall"> View All </a></section><section class="toc-guide-chapter" data-metrics-module="toc-guide-2"><div id="toc-ad-141" class="ad ad-141 toc-guide-ad"></div><header><h2><span class="header-counter">2 of 5 / </span> Symptoms & Types</h2><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergy-symptoms-types" data-metrics-link="viewall"> View All </a></header><div class="toc-guide-chapter-content"><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/article_thumbnails/hpt_toc_redesign/allergies_hpt_toc_redesign/1500x1500_allergies_hpt_chapter_2_1364075617.jpg?resize=540px:*&output-quality=75" alt class="toc-guide-chapter-img"><ul class="toc-guide-chapter-links"><li><a href="https://www.webmd.com/allergies/spring-allergies" data-metrics-link="1"><h3>Spring Allergies</h3><div><p>There's no cure but you can take steps to curb springtime allergies, from medication to household habits.</p></div></a></li><li><a href="https://www.webmd.com/allergies/summer-allergies" data-metrics-link="2"><h3>Summer Allergies</h3><div><p>Summer allergies are usually triggered by pollen from grasses and weeds.</p></div></a></li><li><a href="https://www.webmd.com/allergies/fall-allergy-relief" data-metrics-link="3"><h3>Fall Allergies</h3><div><p>Ragweed, mold, and dust mites are the biggest allergy triggers in the fall.</p></div></a></li><li><a href="https://www.webmd.com/allergies/winter-allergies" data-metrics-link="4"><h3>Winter Allergies</h3><div><p>With indoor allergies such as mold and dust mites, you may notice symptoms more during winter, when you spend more time inside.</p></div></a></li></ul></div><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergy-symptoms-types" data-metrics-link="viewall"> View All </a></section><section class="toc-guide-chapter" data-metrics-module="toc-guide-3"><header><h2><span class="header-counter">3 of 5 / </span> Tests & Diagnosis</h2><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergies-tests-diagnosis" data-metrics-link="viewall"> View All </a></header><div class="toc-guide-chapter-content"><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/article_thumbnails/hpt_toc_redesign/hpt_toc_redesign_illustrations/1500x1500_diagnosis_and_test_option_1.jpg?resize=540px:*&output-quality=75" alt class="toc-guide-chapter-img"><ul class="toc-guide-chapter-links"><li><a href="https://www.webmd.com/allergies/allergy-prevention" data-metrics-link="1"><h3>Finding the Cause of Allergies</h3><div><p>An allergist may be able to help identify your allergy triggers. Several different types of allergy tests are used to do this.</p></div></a></li><li><a href="https://www.webmd.com/allergies/doctor-indoor-allergies" data-metrics-link="2"><h3>When to See an Allergist</h3><div><p>If you think you have allergies, think about seeing a doctor who can tell you whether you do or not.</p></div></a></li><li><a href="https://www.webmd.com/allergies/skin-test" data-metrics-link="3"><h3>Allergy Skin Test</h3><div><p>Skin testing is one way your doctor can check on what causes your allergy symptoms.</p></div></a></li><li><a href="https://www.webmd.com/allergies/blood-test" data-metrics-link="4"><h3>Blood Test for Allergies</h3><div><p>Allergy blood tests detect and measure the amount of allergen-specific antibodies in your blood.</p></div></a></li></ul></div><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergies-tests-diagnosis" data-metrics-link="viewall"> View All </a></section><section class="toc-guide-chapter" data-metrics-module="toc-guide-4"><div id="toc-lazy-141" class="ad ad-141 toc-guide-ad"></div><header><h2><span class="header-counter">4 of 5 / </span> Treatment</h2><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergies-treatment" data-metrics-link="viewall"> View All </a></header><div class="toc-guide-chapter-content"><img src="https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/article_thumbnails/hpt_toc_redesign/allergies_hpt_toc_redesign/1500x1500_allergies_hpt_chapter_4_1029339748.jpg?resize=540px:*&output-quality=75" alt class="toc-guide-chapter-img"><ul class="toc-guide-chapter-links"><li><a href="https://www.webmd.com/allergies/otc-vs-prescription-whats-difference" data-metrics-link="1"><h3>Types of Allergy Drugs</h3><div><p>Learn all about the different over-the-counter and prescription medicines that can help ease annoying symptoms.</p></div></a></li><li><a href="https://www.webmd.com/allergies/antihistamines-for-allergies" data-metrics-link="2"><h3>What Are Antihistamines?</h3><div><p>When medicine is needed to stem allergy symptoms, antihistamines are often first in line.</p></div></a></li><li><a href="https://www.webmd.com/allergies/decongestants" data-metrics-link="3"><h3>How Decongestants Work</h3><div><p>When allergies make your nose stuffed up, an antihistamine generally won't help. But a decongestant might.</p></div></a></li><li><a href="https://www.webmd.com/allergies/nasal-sprays" data-metrics-link="4"><h3>Nasal Sprays for Allergies</h3><div><p>When allergies strike, nasal sprays can help. There are many different types, and most work faster than pills.</p></div></a></li></ul></div><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-allergies-treatment" data-metrics-link="viewall"> View All </a></section><section class="toc-guide-chapter" data-metrics-module="toc-guide-5"><header><h2><span class="header-counter">5 of 5 / </span> Appointment Prep</h2><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-appointment-prep" data-metrics-link="viewall"> View All </a></header><div class="toc-guide-chapter-content"><ul class="toc-guide-chapter-links"><li><a href="https://www.webmd.com/apptprep/chronic-sinusitis-nasal-polyps-journey/cm/toc" data-metrics-link="1"><h3>Questions for Your Doctor About Chronic Sinusitis With Nasal Polyps</h3><div><p>Whether you're newly diagnosed with chronic sinusitis with polyps or already in treatment, learn how to make the most of your doctor appointment.</p></div></a></li><li><a href="https://www.webmd.com/apptprep/your-childs-food-allergies-journey/cm/toc" data-metrics-link="2"><h3>Questions for Your Doctor About Your Child's Food Allergies</h3><div><p>Whether your child is newly diagnosed with a food allergy or you have questions about their current management plan, learn how to make the most of your doctor appointment.</p></div></a></li></ul></div><a class="view-all-link" href="https://www.webmd.com/allergies/guide-chapter-appointment-prep" data-metrics-link="viewall"> View All </a></section></div></div><div class="toc-guide-chapters bottom"><div class="toc-guide-chapter-wrapper no-image"></div></div></div></div><div class="webmd-row pane" style="" id="ContentPane31" tabindex="-1"><div class="toc-features-ss"></div><div id="toc-newsletter" class="toc-nl-module" chronic-id="091e9c5e824b6a18"><div class="toc-newsletter-image-container" style="background-image:url("https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/tocs/healthctr/asthma-cropped.jpg?resize=620px:*&output-quality=75");"></div><div class="toc-newsletter-content"><div><h3>Sign up for our free Allergies and Asthma Newsletter</h3><h4>Get news and information on treatments, ways to manage reactions, and more</h4><form><input type="email" required placeholder="Enter your email address"><button disabled type="submit"> Subscribe </button></form><small class="disclaimer"> By clicking Subscribe, I agree to the <a target="_blank" href="https://www.webmd.com/about-webmd-policies/about-terms-and-conditions-of-use">WebMD Terms & Conditions</a> & <a target="_blank" href="https://www.webmd.com/about-webmd-policies/about-privacy-policy">Privacy Policy</a> and understand that I may opt out of WebMD subscriptions at any time. </small></div></div></div></div><div class="webmd-row pane" style="" id="ContentPane32" tabindex="-1"><aside class="toc-news-module" data-chronicle="091e9c5e826438fa" data-metrics-module="toc-news"><header><h3>News</h3></header><ul class=""><li class=""><div class="card"><div class="container"><a href="https://www.webmd.com/allergies/news/20240906/needle-free-epinephrine-nasal-spray-a-game-changer" data-metrics-link="1">New Needle-Free Epinephrine Nasal Spray a ‘Game Changer’</a><span class="subtext">The FDA has approved a nasal spray, called neffy, to treat serious allergic reactions in adults and children who weigh at least 66 pounds. It should be available in the next few months.</span></div></div></li></ul></aside><div style="display:contents;"><section class="toc-latest-feed" data-chronicle="091e9c5e824ad76b" data-metrics-module="toc-ltst" data-v-11df87a7><h2 data-v-11df87a7> Suggested Reads about Allergies</h2><div class="latest-feed-content" data-v-11df87a7><div class="img-container" style="background-image:url(https://img.lb.wbmdstatic.com/vim/live/webmd/consumer_assets/site_images/tocs/healthctr/SP_GettyImages-629639559.jpg?resize=540px:*);" data-v-11df87a7></div><div class="text-container" data-v-11df87a7><ul data-v-11df87a7><li data-v-11df87a7><a href="https://www.webmd.com/allergies/ss/slideshow-common-allergy-triggers" data-metrics-link="1" data-v-11df87a7><div data-v-11df87a7><h3 data-v-11df87a7>Common Allergy Triggers</h3><p data-v-11df87a7>From pollen and pets to food and bugs, find out the most common things that can trigger allergy symptoms in this WebMD slideshow.</p></div></a></li><li data-v-11df87a7><a href="https://www.webmd.com/allergies/features/nasal-spray-are-you-overdoing-it" data-metrics-link="2" data-v-11df87a7><div data-v-11df87a7><h3 data-v-11df87a7>Are You Overusing Nasal Spray? </h3><p data-v-11df87a7>Nasal sprays may ease nasal congestion, but overusing them can backfire into a condition called rhinitis medicamentosa.</p></div></a></li><li data-v-11df87a7><a href="https://www.webmd.com/allergies/cm/rm-quiz-child-allergy-facts" data-metrics-link="3" data-v-11df87a7><div data-v-11df87a7><h3 data-v-11df87a7>What Do You Know About Children's Allergies?</h3><p data-v-11df87a7>Know the difference between dander and dust mites or histamines and hay fever? Take this WebMD quiz to test your childhood allergies knowledge.</p></div></a></li><li data-v-11df87a7><a href="https://www.webmd.com/allergies/cm/rm-quiz-skin-allergy-facts" data-metrics-link="4" data-v-11df87a7><div data-v-11df87a7><h3 data-v-11df87a7>Start From Scratch: Test Your Skin Smarts</h3><p data-v-11df87a7>What are skin allergies? How do they happen? What type of jewelry is most likely to cause a reaction? WebMD tests your knowledge of skin allergies.</p></div></a></li></ul></div></div></section></div></div><div class="webmd-row pane" style="" id="ContentPane33" tabindex="-1"><div style="display:contents;"><div class="toc-top-searches" data-chronicle="091e9c5e824a7cfe" data-metrics-module="toc-topsrch" data-v-6db8804e><div data-v-6db8804e><h2 data-v-6db8804e>Top Search Terms for Allergies</h2><ul data-v-6db8804e><li data-v-6db8804e><a href="https://www.webmd.com/allergies/anaphylaxis" data-metrics-link="1" data-v-6db8804e>Anaphylaxis</a></li><li data-v-6db8804e><a href="https://www.webmd.com/allergies/hay-fever-allergy" data-metrics-link="2" data-v-6db8804e>Hay Fever</a></li><li data-v-6db8804e><a href="https://www.webmd.com/allergies/postnasal-drip" data-metrics-link="3" data-v-6db8804e>Postnasal Drip</a></li><li data-v-6db8804e><a href="https://www.webmd.com/allergies/neti-pots" data-metrics-link="4" data-v-6db8804e>Neti Pot</a></li><li data-v-6db8804e><a 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