Eli5: How do cancer drugs kill cancerous and precancerous cells?

807 views

My doctor has prescribed a chemo cream to treat several stubborn actinic keratosis areas on my face. I am supposed to use the cream on my entire face twice a day for 28 days. (Eeek !). My understanding is that the cream somehow gets into the cancerous cells (how?) and disrupts the cells ability to reproduce (how?). For a bonus..can you tell me why this process pushes all those nasty cells to the surface to die….making my face look like a living mutant zombie who didn’t fare well during the apocalypse! (Pic in comments)

In: Biology