Test your diagnostic skills in our regular dermatology quiz. What has caused this itchy skin eruption in a young child?
A 10-month-old boy presents with a six-week history of a pruritic eruption (Figure). He has been otherwise well, with no antecedent fevers, rhinorrhoea, cough, dyspnoea, anorexia or diarrhoea. His past medical history is otherwise normal and his immunisation record is up to date. Aside from cradle cap, he has had no other dermatological issues.