Trying to get in touch with my friend, can't say how quick its going to be, so going to Google it and see what i come up with..
http://www.vetdermdoc.co.uk/ I'm sure this is the lady as it was a female in the field of dermatology - will double check though
The other thing is that the vet your friend goes to should have a list of specialists in each field and a number of them in surrounding counties too.