Cysts on the scalp are another cause of
scalp sores. In folliculitis there is inflammation of
one or several hair follicles
on the skin causing red, bumpy and pimple-like lumps.Tinea capitis causes round, red, scaly bumps on the scalp's surface. In psoriasis bumpy patches of skin with soreness may extend beyond the hair line and there are mild to severe thick, crusted plaques accompanying basic symptoms. Wash your hair regularly and avoid damp or sweaty skin.