My dermatologist prescribed initially some antibiotic(1 month) which was useful to certain extend but it never stopped those nodular and cysticacne. Finally he prescribed accutane(1 month --20mg everday) and within 20 days the acne cleared with all dark brown spots. Also I have acne scars from previous acnes and these new ones as well. For those he suggested dermaroller. Will it be safe to use dermaroller if I stop accutane now and do it after 10-15 days with tha above mentioned dose?