Cupping is a therapeutic technique that involves placing cups on the skin to create suction. The cups can be made of various materials, such as glass, bamboo, or silicone. The suction created by the cups helps to increase blood flow to the area, promote healing, and relieve muscle tension. Cupping is often used to treat muscle pain, inflammation, and certain respiratory conditions. It leaves temporary circular marks on the skin, which usually fade within a few days.