About Dr John Cowen Dr John Cowen is a full time private General Practitioner at 51 Sloane Street in Knightsbridge, where he has worked since 1978. He read Medicine at Pembroke College, Cambridge and then qualified at St Thomas' Hospital in London with the qualification MA MBBChir. He also holds a Family Planning Certificate, Diploma of the Royal College of Obstetricians and Gynaecologists and is fully accredited by the Care Quality Commission to examine and treat children.
Allergies / Hay Fever Having had a wet but mild Winter and early Spring this year, allergies especially to tree pollens seem to be particularly bad, affecting more patients either for the first time or worse than usual. There are plenty of options for both prevention and treatment which can be offered.