For 1 month, a 54-year-old woman has had an intensely pruritic eruption on her abdomen, arms, and anterior thighs. She has long-standing hypertension and type 2 diabetes mellitus, which are treated with an angiotensin-converting enzyme inhibitor/diuretic and an oral hypoglycemic agent.
Which of the following would you include in the differential?
B. Grover disease.
C. Guttate psoriasis.
D. Pityrosporum folliculitis.
E. Lichen planus.
Bonus question: There is something missing from the history. What question would you ask this patient?