I have been using Tretinoin 0.05 during the night time again after two years being off it. It really worked well the first time and all my acne went away. I was also on antibiotics and taking Aczone in the morning. I started using Tretinoin again and Aczone, since my acne went crazy after being in Florida and being in the sun. Anyway, I have been on it for two weeks and have noticed some clearing, but also have noticed that my skin has gotten greasy/oily and some cysts pop up but then go away within a matter of days. Has anyone else had this experience of oily skin, but then getting better? And does the skin change/or react differently to prescriptions you have used in the past? Thank you!