What is the duration of acute urticaria (hives)?

Updated: Mar 21, 2018
  • Author: Henry K Wong, MD, PhD; Chief Editor: Michael A Kaliner, MD  more...
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Individual lesions of acute urticaria can appear at different locations and fade without scarring, often in a matter of hours. The development of urticaria can be an isolated event without systemic reaction or it can be a prelude to the development of an anaphylactic reaction. Although urticaria results from transient extravasation of plasma into the dermis, angioedema is the subcutaneous extension of urticaria that results in deep swelling within subcutaneous/submucosal tissues and is associated with pain but not pruritus.

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