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Allergic Conditions: Antihistamines Antihistamines are the most widely used medications for allergic diseases. They are used to treat symptoms of allergic rhinitis, or "hay fever," which affects more than 35 million people in the United States. Antihistamines can lessen your symptoms by preventing the effects of histamine – a chemical substance produced by the body during an allergic reaction. Many different antihistamines are available, either by prescription or over-the-counter (OTC). Various forms include eye drops, nose sprays, liquids and pills, either as an antihistamine alone or mixed with other medications, especially decongestants, to relieve a larger range of symptoms. Resources about antihistamines: Please visit an allergist for more information on allergic disease and your individual medical condition. If you need to locate an allergist in your area, visit the Academy’s online Physician Referral Directory. |
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© 1996-2008 · All Rights Reserved · American Academy of Allergy Asthma & Immunology |
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