Hives : Causes

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Hives
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Causes could include:
When you have an allergic reaction to a substance, histamine and other chemicals are released into your bloodstream, causing itching, swelling, and other symptoms. Hives are a common reaction, especially in people with other allergies like hay fev...
Source:ADAM
Date:April 12, 2007
Hives are an allergic reaction. The body's immune system is normally responsible for protection from foreign invaders. When it becomes sensitized to normally harmless substances, the resulting reaction is called an allergy. An attack of hives is s...
Source:Gale Encyclopedia of Alternative Medicine
Hives are easily diagnosed by visual inspection. The cause of hives is usually apparent but may require a careful medical history in some cases.
Source:Gale Encyclopedia of Children's Health
Hives is an allergic reaction. The body's immune system is normally responsible for protection from foreign invaders. When it becomes sensitized to normally harmless substances, the resulting reaction is called an allergy. An attack of hives is se...
Source:Gale Encyclopedia of Medicine
Hives is an allergic reaction. The body's immune system is normally responsible for protection from foreign invaders. When it becomes sensitized to normally harmless substances, the resulting reaction is called an allergy. An attack of hives is se...
Source:Gale Encyclopedia of Nursing and Allied Health
Allergic reactions are sensitivities to a specific substance, called an allergen , that is contacted through the skin, inhaled into the lungs, swallowed, or injected.
Source:ADAM
Date:April 28, 2008
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