Dr Pollock qualified in 1976 and began his initial training working in obstetrics and gynaecology. He has trained mainly in paediatrics in London and has experience working abroad in Canada and USA. He has undertaken research in food and food additive intolerance and house dust mite allergy - he has gained accreditation in general paediatrics.
He is currently a consultant paediatrician at St Mary's Hospital, Imperial College Healthcare NHS trust - his research includes a funded study into eczema. He has published extensively in different fields.