My dermatologist diagnosed me with bacterial hair folliculitis on my head. He prescribed an antibiotic called "Bactrim" 160 mg. I took it for 10 days 2xdaily and at the end of the 10 days my folliculitis was cleared up. My Dr. suggested I take it for another 10 days which I did with 7 days in between. I have been clear for 2 months now with no further problems other than some occasional itching. All of the sores are gone. BTW he did state that it is a problem that could come back as there is no permanent cure.
Hope this helps others as it is an insidious disease.