Timothy is an internationally renowned Consultant Dermatologist and has specialised in paediatric dermatology, skin cancer, acne/rosacea and connective tissue disorders. He has written papers on topics relating to acne and psoriasis, and is a member of the British Association of Dermatology, European and American Academy of Dermatology and a recognised Clinical Teacher at the University of Cambridge. Through local and nation media Timothy has raised the public's awareness of the dangers of sun damaged skin and he also lectures on dermatology at national conferences, educating the nursing and medical professions. He is an avid gardener and among many other commitments he is on the Chelsea Physic Garden Advisory Committee.