This was about 2 and a half weeks ago, where I had acne and was on my GP prescription of Duac Gel and an antibiotic. It took very long to start to function and my acne and scarring was blue and purple. It's disgusting.
I guess the medication they prescribe in the UK is very mild and hardly ever make a difference, as opposed to the Indian medication which works wonders, however - does dry the skin out. I can smell bleach (Domestos) when I am applying the face wash which makes me very scared lol.