Urticaria (hives)
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You are here: Home » Dermatology Notes » Urticaria (hives)
Transient itchy non-scaly red plaques each present less than 24 hours. Divided into acute and chronic if present less or more than 6 weeks duration. Rarely associated with angioedema, which can be fatal.
Diagnosis
Clinical diagnosis.
Pathology
Either idiopathic or triggered by exposure to a causative factor. Common causes include medications, food (shellfish, nuts, etc), pressure, temperature, infection, and bee stings.
Principles of Therapy
Discover offending agent and avoid exposure. Antihistamines are the mainstay of therapy. Diphenhydramine (Benadryl), Hydroxyzine (Atarax) & Loratidine (Claritin).
Tags: Diphenhydramine, Hydroxyzine, Loratidine
Category: Dermatology Notes
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