After high-intensity exercise there will be obvious muscle soreness, some patients soreness lasts a long time, may be after a period of rest slowly recover. Generally, muscle soreness occurs after exercise because of the following two points: first, because of the patient’s prolonged strenuous exercise, which is a kind of anaerobic exercise, in anaerobic exercise will make the body lactic acid enzymes a large amount of acid, and the acid will accumulate in the muscle layer, resulting in muscle soreness, but this cause of pain, can be relieved by rest and metabolism. Secondly, because of the strain and injury of muscle fibers that can occur during strenuous high-intensity exercise, which can also lead to muscle soreness, it is best to take bruising drugs for treatment, plus rest can also be recovered.