Cupping has been used in most traditional medicines around the world. It is an integral part of Chinese medicine and is often incorporated into pain relief treatments. A vacuum will be created in a glass or silicon cup, and then that cup is applied to the skin. The vacuum creates a suction affect and skin is pulled toward the cup. Cups can be left in place, or alternatively can be applied and then pulled across the surface of oiled skin. This is called slide cupping. Cupping is a very good way to release toxics in the body and help loosen tight muscles.