sorry i am not answerring the question, because this is my first time in this forum, and i don't know how to place a question, but i have the exact same problem since middle of 183, summer. I have been on similar (sound almost the same history) treatments by dermatologist doctors in diferent ocations, diferent clinics,and i am desperate about this, i have been prescribe with some positive temporaly results,; clobetsol prpionate 0.05% topical solution, this is liquid, also tretinoin 0.025%, also clindamycin phophate 1%, this last one appear to help little bit more, and lately i took the initiative tu use melaleuca oil with some positive result, but everithing has been temporarly.
Also i notice like the hair got curly inside the scalp and because of it
create the bumps little balls, apparently the sebaceuos glands have no way out for the natural grase and i beliave thes grease is the one that create the infection pecause it got under the skin.