David is a children's skin specialist who is based at Great Ormond Street Hospital for Children in London.

He was the UK's first full-time children's dermatologist when appointed as consultant in the speciality at Great Ormond Street Hospital in 1982. Since then he has worked to build up a department which can provide specialised services for children with every type of serious skin problem.

David was born in 1949. His father was a general practitioner. He had his medical training at Cambridge University and Guy's Hospital, London.

He subsequently specialised in dermatology, and trained in the speciality at Guy's Hospital and St John's Hospital for Diseases of the Skin. He undertook research projects at Great Ormond Street Hospital, where he also obtained further training in children's dermatology. His qualifications are MA MB BChir FRCP (UK).

David deals with the full spectrum of serious skin diseases that occur in children. He has special interests in eczema, haemangiomas and a variety of birthmarks, particularly pigmented birthmarks.

He is actively involved in research, and has published 138 papers in his field. He has also written 31 invited reviews articles in dermatology and paediatric journals, 31 chapters in books on children's dermatology, and 2 books for parents of children with eczema.

He was instrumental in the establishment of the British Society for Paediatric Dermatology, of which he was the first president. He remains involved in the administration of the Society, which has an important role in the promotion of high quality children's dermatology in the UK.

David has also worked closely with many patient support groups, including DEBRA (epidermolysis bullosa), Caring Matters Now (for giant pigmented birthmarks), the Birthmark Support Group, the National Eczema Society and the Ectodermal Dysplasia Society.

David's wife is a Chinese doctor practising traditional Chinese medicine. He has 4 sons.

He sees private patients at Great Ormond Street Hospital for Children, also at the Cromwell Hospital in West London and the Princess Margaret Hospital in Windsor.