I have sebacious cysts as well...and I'm going to try using Castor Oil as well..I'm lucky in that I don't have them on my face but I do have them in my scalp, back and below the belt. They don't hurt but they are an annoyance, I go to the dermotologist and he cuts and drains them and they rarely comeback..but, I want to give this a try....I'll keep everyone updated as well.