27-Year-Old Pregnant Female with a Pruritic Eruption on the Trunk and Extremities

A 27-year-old Caucasian female gravida two, 32 weeks gestation presented with a 6-week history of a diffuse, pruritic eruption. She reported large blisters forming on her skin over the past several days. The patient was referred by her primary care physician who diagnosed her with rhus dermatitis. She was put on a 12-day prednisone taper starting at 30 mg that provided initial relief. However, the eruption persisted, and her pruritus returned once she finished her taper.