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Antibodies	Shock	Allergic reactions
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Hives

Hives are raised red welts of various size on the surface of the skin, often itchy, which come and go. Also called urticaria, hives is usually part of an allergic reaction to drugs or food. The term "dermatitis" describes an inflammatory response of the skin, caused by contact with allergens or irritants, exposure to sunlight, or by poor circulation, even stress. AVOID SCRATCHING. Scratching the rash may spread the inflammation, lead to infection and even leave scars.

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Definition Alternative Names Causes, incidence, and risk factors Symptoms Signs and tests Treatment Expectations (prognosis) Complications Calling your health care provider Prevention References

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Centers

·As a Disease/Condition

Anaphylaxis

·As a Complication

Insect Bites and Stings

·As a Cause

Low Blood Pressure (Hypotension)

·As a Risk Factor

Choking

Pulmonary Edema

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