Allergies are your immune system’s overreaction to foreign substances. When you touch, inhale or eat something you’re allergic to, your body thinks it’s harmful and reacts to try to get rid of it. …

An allergy is an exaggerated immune response where the body mistakenly identifies an ordinarily harmless allergen as a threat. [11][12][13][14] Allergic reactions give rise to allergic diseases …

Allergies affect nearly 20% of Americans. Here you'll find in-depth allergy information including treatments.

Jul 7, 2025 · Common allergy symptoms include skin reactions, respiratory issues, and digestive problems, and can be managed through avoidance, medication, immunotherapy, and natural …

An allergy is an exaggerated reaction by the immune system in response to exposure to certain foreign substances. These foreign substances are normally seen as harmless by the immune …

May 16, 2018 · Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is …

ACAAI is a professional medical association of more than 6,000 allergist-immunologists and allied health professionals. Learn more about us.

Allergies are not just a nuisance – they are a serious health issue. Allergies can interfere with day-to-day activities and impact quality of life. They generally fall into two categories: Some …

Feb 9, 2024 · An allergy is an immune system reaction to something that is normally harmless. The reaction to the allergen (allergy-triggering substance) results in the release of histamine …

AAFA conducts and promotes research for asthma and allergic diseases. There are several ways you can support AAFA in its mission to provide education and support to patients and families …