Dr John McFadden is a Consultant Dermatologist in the Department of Cutaneous Allergy at St John’s Institute of Dermatology, London. He is also a member of the International Contact Dermatitis Research Group.
He has an interest in the methodology of patch testing, hair dye and cosmetic allergy. He has published over 300 papers and reports, mostly in the field of Contact Dermatitis. As well as lecturing to MSc dermatology students he has also taught many overseas doctors in the art of patch testing. He has written papers on the ‘detective’ methods used for diagnosing allergic contact dermatitis.