Scabs on the scalp can come from dandruff, acne, or contact dermatitis. Treating scalp conditions might involve medicated shampoos or prescription medications. Avoid products that cause irritation, ...
Some of you may remember my thread detailing a rather stupid crash on my bike. As can be assumed, by now, these things have scabbed up. The abrasion on my knee produced the gnarliest scab of them all.