Featured Image. Picture of Psoriasis. A reddish, scaly rash often located over the surfaces of the elbows, knees, scalp, and around or in the ears, navel, genitals or buttocks...

allergy n. , pl. , -gies . An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms

An allergy is a reaction of your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing.

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

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 ...

Causes. Allergies are pretty common. Both genes and environmental factors play a role. The immune system normally protects the body against harmful substances, such ...

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

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

Your eyes itch, your nose is running, you're sneezing, and you're covered in hives. The enemy known as allergies has struck again.

A food allergy is an adverse immune response to a food protein. They are distinct from other adverse responses to food, such as food intolerance, pharmacological reactions, and ...

Allergies Definition. Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances. Description

noun, plural -gies. 1. an abnormal reaction of the body to a previously encountered allergen introduced by inhalation, ingestion, injection, or skin contact, often manifested ...

Allergies An allergy is an immune system disorder that affects 1 in every 3 people. These can be reactions to the commonest of substances, as there can be allergies for almost ...

In-depth look at this disorder including general information, environmental problems, food, medical problems, medicines, testing, allergy shots and frequently asked questions.

al·ler·gy (l r-j) n. pl. al·ler·gies. 1. An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms. Common indications of allergy may ...

Allergies — Comprehensive overview covers allergy symptoms, allergy testing, treatment of an allergic reaction.