When Rings Are Not Ringworms: Case Reports and Review of Literature.

Presented are two cases of subcorneal pustular dermatosis (SPD), one of which was initially confused with, and treated as, a fungal infection. Eventually both cases were successfully treated with dapsone. The exact etiology and pathophysiology of SPD remains unclear and so does its classification. Dapsone remains the treatment of choice but other valid therapeutic alternatives i.e., retinoids, phototherapy, or anti-TNF inhibitors also need to be explored because of the side effects associated with dapsone.