Derm Dx: Facial edema, fevers and rash

A 30-year-old Hispanic woman presents to the ED after 10 days of malaise, fevers, and pharyngitis, and seven days of rash. One day prior, the patient’s primary care doctor diagnosed her with scarlet fever and prescribed penicillin, but the rash continued to worsen.

The patient states that the rash began on her face and abdomen, and then spread to cover a ...