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Hives, also called urticaria, is a raised, itchy area of skin that is usually a sign of an allergic reaction. The allergy may be to food or medications, but usually the cause of the allergy (the allergen) is unknown.

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    • Rash The word "rash" means an outbreak of red bumps on the body. The way people use this term, "a rash" can refer to many different...learn more »
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      Rash Article
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      Itching Article
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      • What is an itch?
      • What are associated symptoms and signs of itching?
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      Atopic Dermatitis Article
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      • What are allergens?
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      Food Allergy Article
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Terms related to Hives:

  • Angioedema
  • Urticaria

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