Cupping is a kind of traditional Chinese medicine therapy, which is suitable for the patient’s own condition, generally no greater harm, but need to pay attention to the contraindications and precautions of cupping. Contraindications: people with high fever and convulsions; people with contact infectious diseases; patients with bleeding tendency, such as leukemia; emphysema, heart failure; varicose veins; skin ulcers; bone fracture before healing; acute arthritis, ligament and tendon injuries; pulmonary tuberculosis, malignant neoplasm, scrofula (mainly refers to the tuberculosis of cervical lymph nodes); over-starvation and over-satiety, drunkenness, over-exertion; mental disorders, tetanus, rabies, and so on. Precautions: The cupping technique should be light, fast, accurate and steady, and the burning ethanol cotton ball should be kept at a distance from the patient’s skin to avoid burns. If dizziness and chest tightness, nausea and vomiting, cold sweat and other phenomena of cupping canning, should immediately start cupping, so that the patient to keep the head down and feet high lying position, if necessary, drink warm water or sugar water, pay attention to the blood pressure, heart rate and so on. If patients want to have cupping, please go to a regular hospital and have it done by a professional doctor under the doctor’s diagnosis. Cupping involves open flames, and it is best not to have friends or relatives do it on their own.