Hives

A-Z Guide

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Allergies tend to run in families. Asthma, eczema (atopic dermatitis), and allergic rhinitis (hay fever) often occur in... »
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Hives are a sign that the whole body is experiencing a hypersensitivity reaction. Hives occur when the body's... »

Q&A

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HSP is a type of vasculitis -- an inflammation of blood vessels -- that was named for Drs. Henoch and Schonlein, who... »