24 yo M comes to urgent care for “allergic reaction”. As he | Figure 1

cbjohnso

Family Medicine

24 yo M comes to urgent care for “allergic reaction”. As he is being brought back to the room I overhear him say he was on amoxicillin and had never had problems with the medication in the past. The rash is itchy. Vital signs are normal. I take a quick peek at his chart and note that he was started on the amoxicillin 8 days prior for a sore throat. (Rapid strep test was negative at that point.) I order one test on him while I go see the next patient that nails the diagnosis. What test did I order and what is his diagnosis? What advice do you give this young man regarding amoxicillin in the future?

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