Q. A 13-year-old girl is brought to the physician’s office by her mother for an itchy rash on her hands and wrists for the past 1 week. The girl says that itching is worse at night and disturbs her sleep. There is no known history of allergies or recent drug intake. There are no similar complaints in the family. Her temperature is 98.4°F (36.9°C), pulse is 80/min, blood pressure is 110/80 mmHg, and respirations are 14/min. Physical examination shows multiple, small, excoriated papules in her finger webs and on the extensor aspect of her wrists. Rest of the examination is unremarkable. What is the best next step in the management of this patient?