PUPPP stands for pruritic urticarial papules and plaques of pregnancy. Also known as polymorphic eruption of pregnancy (PEP), it is one of the most common types of rash you can get during pregnancy.

An 89-year-old White woman presents to her primary care provider (PCP) with an erythematous, flat, patchy rash on both forearms that has been present for about 10 days (Figure 1). The PCP diagnoses ...