(1) This inflammation of the entire follicle or the deeper portion of the hair follicle (isthmus and below) is called deep folliculitis .(2) Gram-negative folliculitis should be suspected if inflammatory acne worsens after several months of oral antibiotic therapy.(3) Some people develop folliculitis , infected hair follicles.(4) It is unclear whether they are true neoplasms or fibrous reactions to minor trauma, insect bites, viral infections, ruptured cysts, or folliculitis .(5) However, it may also resemble seborrhea or folliculitis .