Diagnosed with pre-skin cancers and especially with my mom's skin cancer history (most recently 2 Mohs surgeries on her face) and my sun-rich lifestyle, my dermatologist recommended a round of skin chemotheraphy with the drug Efudex5%. Pictures she showed of other patients were intentionally startling. Forewarned is forearmed is the train of thought! No way to predict my reaction to the drug, but hope is it won’t be too severe. Treatment consists of applying 2xdaily for 3 weeks.