Allergy is a disorder of the immune system which is a form of hypersensitivity. [1] Allergic reactions occur to normally harmless environmental substances known as allergens; these ...

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

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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.

Has a wide variety of information on these disorders. You can search the site in several areas.

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

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More about Allergies: Causes and symptoms Diagnosis Treatment Alternative treatment Prognosis Prevention Resources Allergies Definition Allergies are

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

Get FREE information and resources from the leading national nonprofit organization for people with allergies and asthma.