Case 1: Intractable Rash in a 7-Month-Old Boy

A 7-month-old boy presented with a persistent, non-pruritic, and non-painful erythematous rash that began periorally and spread to his trunk and extremities over three months. Despite various treatments including corticosteroid creams, antibiotics, and antifungals, the rash did not resolve. The boy also experienced hair loss but remained afebrile and otherwise healthy, with no history of other infections or rashes. His growth and development were normal, and he was up-to-date on immunizations. His skin care routine included regular baths and moisturizing with petroleum. The family also tried tar shampoo and fragrance-free laundry detergent.