Acne problem,despite being on isotretnoin course for a sufficient period no permanent relief,boils on head also,affecting skin color, acne keep recurring, all tests are ok. It's been 7/8 years being on antibiotics .n on and off on isotretenoin but relief is not permanent. I am not into junk food, do take care of my eating habits yet facing this problem since 10/12 years . Some times boils occur on the bac of the arm, I apply dinderm BPO, use cetaphil face wash others face wash are too harsh for my skin like sebamed,derclean.