help! I need a good dermatologist in london

[datufan15]

Hi! I am 21 and 2 years ago I started to have acne, bearing in mind I have never had it as a teenager. It started like small pimples on my face, under the skin but now it started to get even worse,like big spots that are under the skin, mostly on my forehead and they hurt. I have been to my gp several times but the only thing that he did was to prescribe me lots of creme that do not work. I don't have severe acne but I am starting to feel depressed because I used to have a nice complexion. Please if you can suggest a good dermatologist in london, I would really appreciate it. Thank you!