Urticaria or hives is a relatively common form of allergic reaction that causes raised red skin welts that range upwards from 5 mm (about a 1/4 inch) in diameter, itch severely, and often have a pale border. Urticaria is caused by direct contact with an allergenic substance (generally a plant, such as poison ivy), or an immune response to food or some other allergen. Hives can also be caused by stress.


Hives redirects here. For garage rock band, see The Hives. Urticaria o ...
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Benadryl, an antihistamine available without prescription, can provide temporary relief from the itching of hives.

Hives usually disappear in an hour or two, as such most require no treatment. For long-term treatment, one should determine thei underlying cause.

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Hives Other

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Urticaria and Angioedema
... What is urticaria? Urticaria, also known as hives, is an outbreak of swollen, pale red bumps or patches (wheals) on the skin that appear suddenly as a result of the body''s adverse reaction to certain...
Source: Cleveland Clinic

Hives Treatment

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... Hives, or urticaria, are red, raised, itchy welts. They appear, sometimes in clusters, on the face, trunk of the body, and, less often, on the scalp, hands, or feet. Like the Cheshire cat in Alice''s ...
Source: HealthWorld