Hi, I m having problems with what my dermatologist told me was folliculitis . The bumps are on my upper arms, shoulders, chest , stomach , back, buttocks , and a little on the thighs. The bumps on my upper arms are now starting to turn black and dry out. I dont know what it is (my guess was keratosis pilaris before the derm. visit) or why it s all of a sudden changing! I can provide pictures if they would help. I was told to use this body wash called PanOxyl but I ve used it for so long and now it doesn t work anymore.