Many patients, who have never done needle knife treatment, often raise the question of whether it hurts or not while choosing needle knife treatment for the first time. In fact, the operation of small needle knife, there will be a slight pain when entering the needle to puncture the skin, to do local loosening, separation, cutting these operations, there may be some rustling sound, in the process of the operation may be some acid, numbness, distension of these sensations, compared to acupuncture acupuncture feeling a little bit more intense. The comfort level of this sensation mainly depends on the patient’s physical condition and the degree of pain tolerance, so before the needle knife treatment, the patient can try to understand more about the possible sensations produced by the needle knife, to eliminate the fear of psychology, and try to maintain relaxation during the treatment process. Patients can also give timely feedback to the doctor about their feelings during the treatment, so that the doctor can also adjust the intensity of the acupuncture treatment through the patient’s level of feeling, and also achieve the best therapeutic effect. After the end of the acupuncture treatment, there may be localized soreness and swelling for 4 hours or up to 1-2 days at the initial stage, which is a normal reaction after the acupuncture treatment, don’t be overly nervous and worried, and it will disappear automatically under normal circumstances. However, a very small number of patients may feel soreness for 3-5 days, which is also normal. Because the degree of soreness and swelling with the patient’s physical condition, the onset of the site, the severity of the disease, the duration of the disease have a relationship, you can do appropriate hot compresses to reduce the reaction, if the reaction is more serious, you need to consult a doctor at any time.