Review Question - QID 109741

A 1-month-old male infant is brought to his pediatrician by his mother who is concerned about the baby’s skin. She noted a yellow-white residue on the baby’s scalp approximately 1 week ago that has not improved. She has tried baby shampoo, baby oil, and petroleum jelly. The baby was born at 35 weeks’ gestation and spent 1 day in the NICU for respiratory distress. His family history is notable for psoriasis in his father and eczema in his mother. His height and weight are in the 30th and 35th percentiles, respectively. On exam, the child is sleeping and appears adequately nourished. A notable exam finding is seen in Figure A. Which of the following is the first-line treatment for this child’s condition?