Case 2

A 50-year-old man presents to an urgent care clinic complaining of a fast-developing pruritic rash after being stung by a wasp. On examination, he is found to have wheals, some of which have become confluent, spread diffusely across his body. The wheals are noted to be surrounded by erythema that blanches under pressure. A single punctate white lesion is visible within one of the wheals. The patient has no difficulty breathing and is normotensive with a blood pressure of 120/70 mm Hg.

Can you diagnose the condition in Case 2?
A. Utricaria
B. Exanthematous drug rash
C. Lupus erythmatosus
D. Bullous Pemphigold

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This article originally appeared on Clinical Advisor