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• Allergy - Wikipedia, the free encyclopedia

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

• Allergies

  Get information on asthma, eczema, hay fever, food allergy and more from Daniel More, M.D., an expert in the diagnosis and treatment of allergic diseases.

• MedlinePlus: Allergy

  Allergy ... An allergy is a reaction of your immune system to something that does not bother most other people.