Angioedema Food Allergy

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Definition

Angioedema is a swelling, similar to hives, but the swelling is beneath the skin rather than on the surface. Hives are often called welts. They are a surface swelling. It is also possible to have angioedema without hives.

See also: Hereditary angioedema


Alternative Names

Angioneurotic edema; Welts


Causes, incidence, and risk factors

Angioedema may be caused by an allergic reaction. During the reaction, histamine and other chemicals are released into the...

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