Lymphedema of the upper limbs is the most common complication after breast cancer surgery, which is mostly triggered by lifting heavy objects, mosquito bites and blood transfusion. Once lymphedema is formed, it is difficult to subside and often remains with the patient for the rest of his life, even painful and uncomfortable to sleep and eat. At present, there is no curative treatment for lymphedema of the upper limbs after breast cancer surgery, mostly functional exercise, elastic bandage, pressure pump and other therapies, which only symptomatically relieve some of the symptoms, with long treatment period and easy to repeat. In contrast, the treatment methods of Chinese medicine for lymphedema are flexible, safe, effective and easy to accept. The treatment of upper limb swelling after breast cancer surgery by “nodal blood cupping therapy” has achieved good clinical results. Patient Li, female, 56 years old, had a left breast swelling surgically removed ten years ago and the pathology showed invasive ductal carcinoma. After 8 cycles of postoperative chemotherapy, she was changed to oral Faloton for 5 years. In April 2017, she developed swelling of the affected limb after performing 160 push-ups without special treatment, and on May 9, 2017, she visited our department for “swelling of the left upper limb for more than one month”. He was able to sleep peacefully at night and regulate his bowel movements. The doctor gave a treatment plan of oral Chinese medicine and blood cupping with nodules. The patient underwent blood cupping once on the same day. After starting the cupping, the swelling was basically relieved and the skin and muscles were much softer when touched. The swelling disappeared and the skin and muscles were softened to the touch, and there was no significant difference between the two upper limbs. According to Chinese medicine, after surgery, the veins and ligaments of breast cancer patients are damaged, and the deficiency of qi cannot move blood, so the stagnation of veins and ligaments over time will lead to “water due to unfavorable blood”, which will turn into dampness and overflow into edema under the skin. Blood cupping has the dual advantages of blood circulation and cupping. By cupping at the nodule, the blood can move the qi, activate the blood and remove the stasis, so that the local qi and blood can circulate smoothly and the edema can be reduced. Finding the nodes correctly is the prerequisite for treatment, among which the nodes around the elbow and shoulder are the key to treatment and often have satisfactory results. In addition, oral tonics are also effective in treating upper limb swelling of breast cancer. Warm tip: After breast cancer surgery, we must pay close attention to the condition of the affected limbs and intervene as soon as swelling, pain and other discomfort occur. 20 suggestions for prevention and treatment of lymphedema after breast cancer surgery: 1. Never ignore the slight aggravation of edema in the upper limbs or chest, and report the edema in the upper limbs in time. 2. Do not draw blood or injections in the affected limb and wear lymphedema markers. 3.Avoid measuring blood pressure in the affected extremities, and if bilateral upper extremity edema is present, blood pressure should be measured in the lower extremities. 4.Keep the skin of the affected limbs clean and dry, pay attention to the folds and finger gaps, and rub emollient lotion after bathing. 5.Avoid strenuous repetitive movements that increase the resistance of the affected limbs, such as scrubbing or pushing and pulling. 6.Do not lift heavy objects and carry bags on the healthy side. 7.Do not wear overly tight necklaces or elastic bracelets. 8.Avoid excessive temperature changes when showering or washing dishes, avoid saunas or hot baths, and use sunscreen products. 9.Avoid injuries to the affected limbs, such as cuts, burns, sports injuries, insect bites, scratches, etc. 10.Wear gloves when doing housework or planting flowers and plants. 11.Avoid any injury when trimming nails. 12.Avoid excessive fatigue of the affected limb, rest and elevate the limb when it feels pain. 13.Some exercises are recommended, such as walking, swimming, aerobic fitness, cycling, aerobics or yoga work. 14.Lymphatic edema affected limbs need to wear elastic cuffs when flying, and add elastic bandages when flying long distances to increase fluid intake. 15, wear light-weight fake breast or suitable, no steel bra. 16.Use an electric razor to remove armpit hair. 17.Patients with lymphedema should wear an elastic cuff during the day and be checked by the treating physician once every 4-6 months. If the cuff is too loose, it may be caused by a smaller circumference of the upper limb or a worn-out cuff. 18. Seek medical attention promptly for any signs of infection, such as rash, epidemic itching, redness, pain, increased skin temperature or fever. 19, maintain the ideal weight, into a low salt, high protein easy to digest diet, avoid smoking and drinking alcohol. 20, the most important point – to maintain a good, positive, optimistic state of mind.