Thanks for writing in.
You are suffering from folliculitis
has nothing to do with it.
Continue the Roaccutane .You can continue the treatment and apply soframycin cream over the boil cyst.A course of oral antibiotics
will be helpful.
Visiting a dermatologist
will allow proper evaluation of skin condition and prescription medicine.These will help in long term relief.
Hope this helps.
Skin hair nail specialist.