Allergy is a disorder of the immune system often also referred to as atopy. Allergic reactions occur to normally harmless environmental substances known as allergens; these ...

Allergies are more common than ever, affecting up to 1 in 3 people. From basic concepts to in-depth discussion of specific allergic diseases, a board-certified allergist makes ...

Get the facts about allergic reactions, causes, allergy types (food, dust, mold, seasonal), symptoms and signs (skin rash, itching, red bumps, sneezing).

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

Allergy information includes articles on allergies, symptoms, treatment, medications, food allergies, and allergy relief.

Allergy symptoms can very from mild to life-threatening. Learn more about allergic reactions.

Symptoms for allergies vary greatly, symptoms can give you clues about your allergies, treatment and medicine

Sneezing, difficulty breathing, cramps, and vomiting–all are allergy symptoms. Learn the types of allergies, specific allergy symptoms, and emergency warning signs.

There's a variety of drugs for allergy symptoms. Learn about each group including how they work and side effects.

This medication is used to prevent and treat seasonal and year-round allergy symptoms of the nose (stuffiness or congestion, runny nose, itching, and sneezing).