. "Before I talk about how Retin A is changing/affecting my face, I would thought I would give some quick background info I have [and still have though less severe than before] oily/combination skin which suffers from mild - moderate pustular acne [am 19, so for 5 years now] which has left several red marks over my face, especially on my chin and forehead, chin is probably the worst, as it constantly feels c" . . . .