For those looking forward to this treatment, I found this message board of great help. It gave me courage and keept me in touch with other people experiencing my situation. I also found valuable tips, vaseline worked wonders for awhile. The most important information that I realized is each person responds differently to this treatment. I used Obagi, a skin treatment regime with Retine for 4 months prior to using Carac. The Obagi treatment prepared my skin for the next step and my reaction to the Carac was immediate and very profound. I used Carac 2x a day for 15 days. On day 15, when I visited my physician he said "that is enough". My skin was blistered and burning. There was no need to continue the treatment. For the next week my skin cracked, itched and burned but each day it was better and easier. I am now at day 25. My skin looks a bit pink, but the skin tones are even. I look 20 years younger. I expect to use this treatment again in a few years as I have a tendency for both BCC and SCC. I also have a history of Melanoma. Bottom line. Take care of yourself, love yourself and follow your doctors orders.