Treating facial viral warts. What can cause sores or scabs on the scalp? You are more likely to get one of these viruses if you cut or damage your skin in some way. Common warts usually appear on the hands. Warts are not usually painful, but some types, such as verrucas, may hurt. Mosaic warts grow in clusters and form a "tile-like" pattern. Co-Authored By:. You can get some wart remedies without a prescription and treat the warts yourself. Other treatments for warts on the skin. After you take a bath or shower, pat your skin dry lightly with a towel.