I had been on roaccutane last year for 4months,after a year now I'm facing the same problem from the last month and my dermatologists prescribed me roaccutane with azithromycine again!my anthr doctor prescribed me calcium oxide, vitamin b6 & b12, and vitamin D. My Q is if any of this vitamins have interactions with each other?i'm so scared why after taking roaccutane the same pustle cystic acne is back?what shud I do even after I finish my course of roaccutane to make it stop from coming back?