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 Allergy 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 such as hay fever, allergic conjunctivitis, allergic asthma, atopic dermatitis, food allergies, and anaphylaxis [1]
Northern Arizona Allergy Group With over four decades of medical expertise, including 33 years specializing in Allergy, Asthma, and Immunology, Dr Afrasiabi brings exceptional clinical experience and academic credentials to his practice
Allergy Symptoms: Signs, Symptoms, and Treatment - WebMD Allergies that you get at similar times each year (seasonal allergies) are usually caused by pollen from trees, grasses, and weeds Most trees release pollen in the spring, followed by grasses
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