I'm learning a lot with my research. How did we manage without Internet? I got your post about Efudex side effects. I'm wondering if only potentially cancerous areas turn red or if all treated areas turn red? I'm almost done with my 4th week and the redness seems to be confined to my nose, forehead, and right cheek. Left cheek doesn't look bad, and there is zero response on my neck, shoulders, and upper back. Although treating both ears as well, only one small spot on my right ear is responding with some scaliness. Also, I see some posters going through 6 weeks of treatment, others 8. My doctor prescribed only 4. The redness, irritation, itching, and burning is as bad as I've ever had to put up with. As a guy that NEVER, EVER takes any kind of medication, I've gone to the 800 mg Ibuprofen. I can't tell if it helps or if a reduction in the symptoms just means I am distracted by something else. I've only had on BCC removed in the past, from my nose, and the Efudex prescription came during my one year follow up (closer to 15 months.) How soon can I expect to bounce back when my treatment ends on Wednesday?