To determine the frequency of skin disorders encountered in a paediatric emergency care unit and to evaluate the benefits of advice from a dermatologist, we prospectively recorded data of children admitted with skin disorders to the emergency care unit during a 5-month period. Diagnostic agreement between paediatricians and dermatologists evaluating the patients separately was assessed. Three hundred and ninety-five children (median age 3 years; interquartile 1-6) were included. Skin disorders represented 4% of all paediatric emergency care unit visits. Visits were considered as appropriate in 19-30% of cases according to different criteria. Six diseases accounted for 57% of cases: viral exanthema, urticaria, atopic dermatitis, varicella, diaper dermatitis and herpetic gingivostomatitis. The dermatologist modified the diagnosis in 42% of cases and the treatment in 30%. Greater emphasis on teaching the skin disorders encountered in this setting and efforts to provide easy access to advice from dermatologist would improve the quality of care.