A 12-year-old girl with eczema not responding to treatment

A 12-year-old girl, who has had a history of intermittent skin rashes since infancy, presents for the sixth time in four months for exacerbation of eczema that is not responding to recommended treatment (daily baths, frequent moisturization and twice-daily application of medium-potency topical corticosteroids). Her parents express concern about the effect of her skin disease on the child's life. They are worried about her sleeping difficulties and decreased involvement in her regular activities; for example, she has stopped playing sports and attending school. During the interview, the patient makes minimal eye contact and appears agitated. Her medical history includes allergic rhinitis. She looks systemically well, with normal temperature and vital signs. Skin examination shows generalized xerotic skin and erythematous patches, with predominantly flexural and facial excoriations affecting about half of the body. There is no evidence of burrows, track marks, vesicular or pustular lesions, or honey-coloured crusts. The rest of the exam is unremarkable.