I have oily skin and I have acne and acne scar. I use retino 0.04%gel and tivenca gel. I use tivenca in the morning and at night before goto sleep and I use retino a 0.04%gel at night for one hour but after application retino a gel I face excessive dryness .now what I do please give me proper suggestion. Can I use moisturizer after washing retino a gel. Any rule to use moisturizer with retino a gel and what about tivenca gel. Plzzz give me proper information.