however, multiple plaques are relatively common. Usually localized on the chin, cheeks, or neck, involvement of the upper lip
is rare. The characteristic lesion is an inflammatory reddish nodule with pustules and draining sinuses on the surface. Hairs are loose or broken, and depilation is easy and painless. Pus-filled whitish masses involve the hair root and follicle. Over time, the surface of the indurated nodule is covered by exudate and crust.