I have been on Carac for 22 days with minimal effect despite my numerous visible kerotosis. I have been told to stop the Carac and was given Efudex to apply 2x per day. I had the choice presented to me to continue with the old treatment for another month or two or to try the stronger drug. I'll let you all know what I find to be the difference between the two if any.
If you are reading these posts Before starting your treatment (and getting yourself worked up with fear), then take note. Everyone reacts differently to these drugs. I put off my own treatment for 6 months and worried myself silly, and so far all for nothing. Wasted energy and time. Better to get it over with . The precancerous places only get worse with time if not treated, not better.