Cupping is an ancient therapy that has been used by many different cultures for over 3000 years and it has been part of mainstream medicine in Europe until the late 20th century. Cupping involves the principal of applying a vacuum to the treatment area to stimulate or regulate Qi and Blood circulation in the body and release any stagnation that is often the cause of illness. It is regularly used in the treatment of muscular and joint pain, common colds, asthma, chronic cough and indigestion. There may be marks left on the skin from the cups but these usually disappear after a few days.