Urticaria - Dermatology
Urticaria - Dermatology
Urticaria - Dermatology
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<strong>Urticaria</strong>: The Basics<br />
Lesions typically appear over the course of<br />
minutes, enlarge and then disappear within<br />
hours<br />
Individual wheals rarely last >12hrs<br />
Surrounding erythema will blanch with pressure<br />
<strong>Urticaria</strong> may be acute or chronic<br />
• Acute = new onset urticaria < 6 weeks<br />
• Chronic = recurrent urticaria (most days) > 6 weeks<br />
Most urticaria is acute and resolves
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