Folliculitis decalvans is a scarring folliculitis of ... which can be very painful and/or pruritic. The disease causes perifollicular erythema, pustules, crusting, and oozing.
Neutrophil-associated scarring alopecias include folliculitis decalvans, perifolliculitis ... The presence of follicular debris causes foreign body reactions and leads to fibrotic scar tissue.