Allergies - Symptoms and causes - Mayo Clinic Allergies happen when the immune system reacts to a foreign substance that gets inside the body These substances are known as allergens They include pollen, bee venom and pet dander Allergies also can happen due to certain foods and medicines that don't cause reactions in most people
Allergies: Types, Symptoms, Treatment Management 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 cause minor reactions like itching, sniffling and sneezing
Allergy - Wikipedia Dust mite allergy, also known as house dust allergy, is a sensitization and allergic reaction to the droppings of house dust mites The allergy is common [49] and can trigger allergic reactions such as asthma, eczema, or itching
Allergies Overview: Symptoms, Treatments, and More - Healthline An allergy is an immune system response to a foreign substance that’s not typically harmful to your body Learn more about the types, causes, and symptoms of allergies, and how they're treated
Allergy (Allergies) Types, Symptoms, Food, Medicine, Treatment Read about allergy treatment, symptoms, testing, shots, and medicine Learn about the types of allergies (asthma, allergic rhinitis, seasonal, conjunctivitis, eczema, anaphylaxis, hives) causes, risk factors, and more
Allergies | Allergy Symptoms | MedlinePlus 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 reaction that can be life-threatening Doctors use skin and blood tests to diagnose allergies
Asthma and Allergy Foundation of America | AAFA | Home The Asthma and Allergy Foundation of America (AAFA), a not-for-profit organization founded in 1953, is the leading patient organization for people with asthma and allergies, and the oldest asthma and allergy patient group in the world