"i am on differin gel 7 weeks now. i have to say the first few weeks my skin got worse and very red and sore but i stuck with it and in week 3 i started to see an improvement. i had a lot of red spots on my cheeks and so far they are clearing up. i would suggest only use a small amount. cause if you use to much it can irratate your skin more. you need to be using it at least 8 weeks b4 you really start to see a difference. so stick with it. its worth it in the end even though at the moment you think its never gonna clear."