Cupping is an ancient modality of healing where glass cups are applied to the skin to create suction. This suction releases tension and pain in muscles and fascia, muscle knots, and swelling. It also helps stimulate detoxification, treat respiratory conditions and improve overall circulation. The cups can be applied anywhere on the body and usually stay in place for about 10-20 minutes. Similar to gua sha, they can produce temporary markings on the skin (petechiae), which typically go away in 3-5 days.