He graduated from the School of Medicine at Birmingham University and completed his clinical medical training in Nottingham.  He spent twenty years as a Primary Care Physician in Hampshire, during which he acquired a special interest in allergy medicine.  He developed this interest during an educational visit to USA Allergy Centres in 1988 and gained the Diploma in Allergy from the Cardiothoracic Institute, University of London.  He was appointed Consultant in Allergy Medicine at University College London Hospitals in 1995.  He is an advisor to Allergy UK and the Anaphylaxis Campaign.