A mother brings her 2-month-old son to his pediatrician for evaluation of a rash on his scalp. She notes it began shortly after his 1-month well-child visit and has been gradually worsening. He is otherwise healthy. The rash is composed of well-defined plaques and greasy, yellow scales (Figure A). What is the most appropriate treatment for this condition?
- Staged surgical excision
- Mineral oil and daily scalp washes