I saw my dermatologist yesterday and she informed me that I had to continue the threatment for the full 28 days. I'm now on day 18. My skin was so dry that it literally split apart similar to paint "crackling." Now, I'm using vaseline all day and 100% zink for sun block. Large sections (< cubic centimeter) are starting to peel off. My face is extremely red...skin that seemed just fine w/out darker areas such as AK's. I also am applying triple antibiotic (generic) to some areas - two hours after applying carac - and during the day, to the cracking areas. Yikes!! This is crazy. The pain is less now but the appearance is extreme. I'm finished 7/28 and I can't wait. To woman who posted that her Dr. suggested Carac as she had too many AK's and also had wedding plans in 3 weeks....if you can, postpone one of them because they definitely are not compatible. Kathy