A fungal infection, scalp ringworm may start off as small bumps ... provider for topical treatments that can help. Any rash or sores on your scalp may scab over. They may become infected, too.

If you scratch, it can lead to sores that scab over or may become infected and inflamed. Similar to scalp ringworm, lice is most common in children, but it can also affect adults. The most common ...