Moles are benign pigmented spots or patches of skin that range in color from tan, brown and black (moles) to red, pink, or purple (vascular lesions, such as strawberry hemangiomas or port wine stains). Though most mole marks are harmless, they may develop into cancer. Moles exhibiting any of the following warning signs should be examined by a professional immediately.
Warts are skin growths caused by viruses. Different warts respond to different treatments. Some go away on their own. Salicylic acid products (in the form of drops, gels, pads, and bandages) can help self-treatment of many warts by dissolving the keratin protein that makes up the wart and the dead skin above it.