Malassezia (Pityrosporum) folliculitis. Pityrosporum folliculitis is an acneiform eruption consisting of chronic pruritic follicular papules and pustules on the upper trunk, neck, and upper arms ...

Medically reviewed by Deeptej Singh, MD Yeast infections on the scalp are caused by an overgrowth of fungal organisms.

Nikki A. Levin, MD, PhD, is an Assistant Professor of Medicine, Division of Dermatology, University of Massachusetts Medical School, Worcester, MA. Note: The author reported no actual or potential ...