A 12-day-old girl was evaluated for a rash. The patient was born at 40 weeks’ gestation via normal spontaneous vaginal delivery to a woman of Vietnamese descent. No complications occurred during the pregnancy or delivery. She was discharged on the third day of life. She drank 90 mL of infant formula (Enfamil) every 3 hours, wet multiple diapers, and had no fussy behavior. She had no other significant illness, had no known drug allergies, and had received her hepatitis B vaccine at birth.
On admission, her vital signs were stable. Erythematous vesicles and pustules were diffusely distributed across the forehead, trunk, lower extremities, and vaginal area and near the eyes (Figure
). No lesions were noted in her eyes or mouth. The patient was sleeping, appeared comfortable, and was in no acute distress.
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