Cupping therapy
is a form of alternative medicine in which cups are placed on the skin to create suction.
Traditional Cupping
uses flame with glass cups. Heating of the cups was the method uses to obtain suction. The hot air in the cups has a low density and, as the cups cool with the opening sealed by the skin, the pressure within the cups declines, sucking the skin into it. in this case, the cups are hot and have a stimulating effect.