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. This can …

Nov 20, 2023 · In many places in the U.S., there are two allergy seasons: spring and fall. Allergies that you get at similar times each year (seasonal allergies) are usually caused by pollen from trees,...

2 days ago · Pollen is one of the most common allergens in the United States. Pollen is an airborne allergen, which is picked up and carried by the wind. Various trees, grasses and weeds create …

Skin allergies frequently cause rashes, or swelling and inflammation within the skin, in what is known as a " wheal and flare" reaction characteristic of hives and angioedema. [36]

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

Nov 19, 2025 · 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 a severe …

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 system in …

Jan 30, 2026 · 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 and other …

To get diagnosed and tested for allergies, you should see a board-certified allergist. This allergist will do the following:

Advocacy and public policy work are important for protecting the health and safety of those with asthma and allergies. We advocate for federal and state legislation as well as regulatory actions that will help …