"Stress, cold weather, or overproduction of sebum by the scalp glands can trigger this condition," says the expert. It is cyst-like lesions on the scalp caused by clogged pores, and are painful.
Severe scaling of the scalp may result, and due to cuticle breakage, the hair may become brittle, with considerable broken hair visible on the patient (Habif, 2004). Lesions may become secondarily ...