Generally speaking, there are three ways to eliminate lactic acid: 1. It is oxidized into carbon dioxide and water in skeletal muscle, myocardium and other tissues. 2. Resynthesis of glucose and glycogen in liver and skeletal muscle. 3. Synthesize fat and some amino acids in the liver. First of all, drink plenty of water after exercise to help the body metabolize lactic acid. Secondly, we should pay attention to the intake of alkaline food in the diet, because a large amount of lactic acid accumulation in the body will affect the acid-base balance of body fluids. In order to mediate and maintain the acid-base balance of body fluids, we need to eat more alkaline foods such as fruits and vegetables after exercise. Also, pay more attention to rest. If conditions permit, massage physical therapy can be carried out to accelerate the elimination of lactic acid. Lactic acid can be eliminated in three days at most. If you haven't exercised for a long time, it's normal to exercise once in a while for a little longer, and you will feel sore muscles for four days. This also shows that the elimination of lactic acid is related to the level of exercise. The higher the exercise level, the faster the lactic acid is eliminated. Generally speaking, it is an ideal exercise intensity to control the intensity of exercise and keep the feeling of muscle pain within three days. It is best not to rest completely the day after lactic acid is formed, because low-intensity exercise can eliminate lactic acid faster than complete rest at rest. On the second day of muscle training, you can do low-intensity jogging or cycling to eliminate lactic acid faster.