Cupping therapy, commonly known as “fire cupping” or “suction tube therapy”. This is a kind of therapy using a cup and jar as a tool, with the help of heat, pumping and other methods to remove the air in it to generate negative pressure, so that it adsorbs on the skin, causing local congestion or stasis of blood phenomenon. Because of its simple operation and significant curative effect, it is highly respected in folklore and has become an important method of family health care. In ancient times, it was called “horn method” because the ancient people used animal horns as a treatment tool and got the name. To the Sui and Tang dynasties, people invented the bamboo jar made by cutting and processing, because it is easy to get materials, cheap and easy to obtain and make cupping therapy has been greatly popularized and promoted. Until the Qing dynasty by the clay made of ceramic jars began to replace the bamboo jars can not be stored dry and easy to crack, and the official emergence of the word “fire can” used today. In modern times, with the improvement of scientific and technological productivity, the emergence of metal jars, ceramic jars, glass jars and even new jars such as pumping jars. At present, the most common clinical glass jars and suction jars. How does the cupping method play a role in preventing and treating diseases? According to the traditional Chinese medicine theory of internal organs and meridians, cupping can not only suck out the wind, cold and dampness on the surface of the body, but also play a role in clearing heat and detoxification, moving Qi and blood, and unblocking the meridians through the special role of acupuncture points. Some scholars believe that because of the large area of action of the cupping method, in addition to the stimulation of a number of local acupuncture points, it also includes the stimulation of the ligament, Sun luo and skin therapeutic effect. However, if the meridians are blocked and the blood flow is not smooth, the skin, flesh, tendons, veins and joints will lose nourishment and the muscles will become atrophied and unfavorable, or the blood vessels will not be honored and the six internal organs will not be transported. Through the suction and cupping effect on the skin, pores, meridians and acupuncture points, the cupping can guide the flow and distribution of the Qi of Ying and Wei, stimulate the Qi and blood of the meridians, moisten the organs and tissues of the internal organs, and also invigorate the function of the internal organs that are weak, smooth the meridians and adjust the balance of Yin and Yang of the body, so that the Qi and blood can be harmonized, thus achieving the effect of fitness and dispelling diseases. In recent years, through various modern scientific means and Western medicine methods of exploration and research, it is believed that the mechanism is mainly mechanical stimulation, cupping through the exhaust caused by the negative pressure inside the jar, so that the edge of the jar tightly attached to the skin surface, pulling the nerves, muscles, blood vessels and subcutaneous glands, can cause a series of neuroendocrine response, regulate the vasodilation and contraction function and vascular permeability to improve local blood circulation. In addition, the negative pressure formed in the jar during cupping makes the local capillaries congested or even ruptured, and hemolysis occurs after the rupture of red blood cells, which then produces a kind of histamine substance that flows throughout the body with body fluids, stimulating various organs and enhancing their functional activities, and can improve the immunity of the body. At the same time, the strong suction force of negative pressure can make the sweat pores fully open, the function of sweat glands and sebaceous glands are stimulated and strengthened, the skin surface aging cells fall off, so that the toxins and wastes in the body can be accelerated. The local warming effect of fire cupping not only dilates blood vessels and increases blood flow, but also enhances the permeability of blood vessel walls and the phagocytic ability of cells. In addition, the change in vascular tension and mucosal permeability at the cupping site, the acceleration of lymphatic circulation, and the strengthening of phagocytosis, form a good environment for infectious lesions against biological causes.