What are nonspecific triggers of urticaria (hives)?

Updated: Mar 21, 2018
  • Author: Henry K Wong, MD, PhD; Chief Editor: Michael A Kaliner, MD  more...
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Aspirin, [65, 66] NSAIDs, [67] opiates, and alcohol have been reported to be nonspecific triggers of urticaria and might lower the threshold for urticaria in selected patients. Therefore, some specialists advise all patients with urticaria to avoid these agents. However, little experimental evidence is available to support this recommendation.

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