1. Normal reaction during cupping: No matter what method is used to suck cupping on the body surface, due to the negative pressure of cupping, local soft tissues can swell above the cupping mouth level, and patients feel a feeling of swelling due to pulling, or fever, warmth, cold, comfort, etc. Some symptoms are immediately or gradually relieved or even completely eliminated. Of course, not all the above feelings will appear, and the number of times they appear varies according to the individual's reaction. After leaving the jar for a certain period of time (several minutes to more than ten minutes), or after flashing the jar for many times, local soft tissues appear flush, purple (ecchymosis color), or erythema (punctate, purple rash), and these skin changes may last for one to several days after leaving the jar. These are all therapeutic effects of cupping therapy. Traditional Chinese medicine and western medicine can diagnose and assist in the diagnosis of diseases according to local reactions. Traditional Chinese medicine believes that blisters, edema and excessive moisture in cupping area reveal the syndrome of dampness. Crimson, purple-black, or rash, or slight pain to the touch, accompanied by body heat, suggesting that you have heat toxin syndrome; If the body does not have fever, it means that it is suffering from blood stasis syndrome; The skin color is unchanged, and it feels tepid, suggesting that it is suffering from deficiency-cold syndrome; Slight itching or dermatoglyphics suggest wind syndrome. The liquid sucked out by pricking collaterals and cupping can show different conditions. Generally speaking, blood indicates mild illness, black blood or blood stasis indicates heavy blood stasis, yellow water indicates damp-heat syndrome, and clear water indicates cold and dampness. Blood often appears in the early stage of treatment or the stage when the disease is about to recover. As for the amount of bleeding, it can also predict the severity and prognosis of the disease. Some patients start treatment with little or no bleeding, which is a sign of severe blood stasis obstruction or high atmosphere. With the increase of treatment times, blood stasis is gradually sucked out, and the amount of bleeding gradually increases, but with the improvement of the condition, the amount of bleeding will gradually decrease until no bleeding can be sucked. Western medicine believes that micro-bleeding in cupping area can be used as one of the basis for diagnosing rash diseases (such as measles, rubella, scarlet fever, typhus, etc.). ), because capillary damage occurs in the early stage of these diseases. If there are black halo with bloody purple spots and overlap each other, it is a positive reaction of typhus, which can appear two days earlier than the agglutination reaction of Proteus or rickettsia on average, and the positive rate is high. There are many large blisters, suggesting that there is water retention, and there is no obvious edema in the limbs that is difficult to observe with the naked eye. Pink or no spots, suggesting neuralgia or hypertension; Those who have dark purple spots and often have dark brown markings in the middle of the purple mark indicate that they have muscle rheumatism and rheumatoid arthritis. If these marks or marks gradually decrease during the treatment, it indicates that the condition has been alleviated, improved or cured. 2. Causes of abnormal reaction: After cupping, if the patient feels very nervous locally and the pain is unbearable, he will get blisters (which may also be wet syndrome) in a few minutes, or feel cold, numbness and pain at the far end of the operating area. These are abnormal reactions. The causes of abnormal reaction are: (1) patients' psychological overreaction. (2) The suction of the jar is too great. (3) misoperation, skin burn, or skin wound. (4) The stimulation of drugs is too strong. (5) The edge of the altar mouth is too thin (referring to the altar), or it is not smooth, with sand-like protrusions or concave seams and convex marks, or the patient's skin is dry and loose (such as the elderly), so the doctor may turn his wrist (turn the altar) when he goes to the altar, which will wrinkle the skin. (6) The cupping time is too long, the local blood stasis is too much, and the bulge is obvious. (7) There are shallow and large arteries in the cupping area (such as abdominal sulcus artery and dorsal foot artery). Due to suction, local soft tissue tension, arterial compression, affecting blood supply, so the distal tissue ischemia, so numbness, chills, pain and other reactions, and even tissue necrosis. Faint cupping refers to dizziness, palpitation, nausea, vomiting, cold sweat and even syncope during cupping. The causes of dizziness are weakness, hunger, fatigue, mental stress or putting the jar in a taboo place. Generally speaking, cupping alone is extremely rare, and it only happens occasionally when acupuncture cupping. Through the above introduction, I believe everyone has gained a lot of knowledge about cupping, and cupping has many precautions, so everyone must carry out it under professional guidance. (Editor: Fan Xuejiao)