What Are These Sore Lumps On My Head?
What Are These Sore Lumps On My Head? Painful sores, blisters, or bumps that develop on the scalp may be caused by: Infection of the hair shafts (folliculitis) or the skin (such as impetigo). An allergic skin reaction (contact dermatitis). Viral infections, such as chickenpox and shingles. When should I be worried about a bump