I had my 1st trtmt done 7 weeks ago using the Pixel Perfect and my 2nd trtmt 2 weeks ago. I've been using Retin-A 3 nights a week for 2 years - I stopped once each trtmt was done but resumed a week after the 1st one. I continued until the 2nd treatment but have not resumed because now I'm reading it can cause problems with healing. Right now my skin looks like it did prior to the 1st trtmt except for some acne - am I still at risk for healing problems? Or would there already be noticable issues?