Hi there, I'm at day 12 of a '2 to 3 week treatment' for a precancer and I suffer a lot. Yeah I know, it is what it is. My question is: is it ok if I stop after 2 weeks? My skin is swollen just below my right eye. I've been told to stop when my skin shows like a crust but I can't say if it is a crust or just heavy dry skin?