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A 39-year-old member asked:

how well do anti-histamines typically work at treating allergies?

2 doctor answers3 doctors weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Blocks hist. release: A person has allergies if his immune system over-reacts to certain types of pollen, and the histamine (and other chemicals) released by his immune system causes itching, runny nose, watery eyes, wheezing, cough, lots of mucus, etc... The treatment is avoidance of pollen, and use of antihistamines and nasal steroids. Antihistamines block the release of histamine from types of white blood cells.
Dr. Paul Williams
Allergy and Immunology 28 years experience
Good for mild allerg: Antihistamines work pretty well for mild, intermittent allergies, or as a second medication in patients with more severe disease. For persistent symptoms that require daily medications, then nasal steroid sprays are superior.

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Last updated May 12, 2015
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