Sores (red&scabby) on head/scalp from dandruff/pimples. Cant stop picking them. How do I stop so they can heal?

See Your Doctor Now. Chronic scalp sores that wax & wane suggest possible Tinea Capitis (aka ringworm); a fungal skin infection. Does NOT involve worms as name implies. Causes flaky, itchy scalp plaques in mild cases; can progress to scalp sores, blisters, hair loss. Is contagious; requires oral anti-fungal therapy. Do not pick sores, can lead to bacterial infection. See doctor now for prompt diagnosis & treatment.