ABSTRACT
History Diamond is a 3-year-old boy who presents to his general practitioner (GP) with an itchy rash that he has had for 4 days. He is otherwise well. He had bronchiolitis at the age of 4 months but has had no other diseases. He is not on any medication. His 5-year-old brother has eczema and his father has hay fever. He attends nursery three times a week. The family lives in a onebedroom flat, which is damp. His father smokes 20 cigarettes a day.
