Well, I guess the fishing in the sun finally caught up with me. Was having some trouble with my lip not healing up well for the last year and time slipped by. Anyhow, the dermatologist did some tests and I guess I have a pre-cancer on my lower lip. So, I now have to suffer with treating it to kill the cells or whatever. It's going to probably take a month by applying a small portion (chemical) at a time, let blister, bleed, crack, and burn, and continue the monitored process until I finish the lower lip. It's going to be a real pain. My advice to you---- WEAR SUNSCREEN on your LIPS and everywhere else!! Wear the widebrim hat! Listen to your dermatologist!