Epiduo
"I've suffered from acne for 8 years now and went through all sorts of phases. Now I'm 20 yrs old and it's all down on the chin area with deep, painful cysts everywhere. Unfortunately Epiduo (or any topical cream actually) is not good for that kind of stuff. If you're a teenager, this may yield more likely results. I had an extremely oily face as a teen so I didn't even experience the red/dry/flaky skin that most do. Sadly it stopped being effective about 6 months in so eventually I quit. Recently I've tried it again but now it gives me persistent painful red/dry/flaky skin and not much positive results. It may be better for other people."