After exercise, substances such as lactic acid are not easy to fade at once and gather in muscle joints, causing soreness, which is normal; The other is that exercise is beyond intensity, exercise is too tired, and it is beyond the limits of the body, such as life.
Excessive exercise causes ligament strain, although it can't be twisted, it still hurts.
In view of the former situation, you don't need treatment, continue to exercise with the same intensity, and it is best to take a bath with hot water at night to promote fatigue recovery, and you can completely return to normal in a week or so.
In the latter case, you need to stop exercising and go to the hospital for examination. If it is only a slight ligament injury, you can take some drugs for promoting blood circulation and removing blood stasis orally, apply them externally, such as voltarin, or apply them hot to promote healing. Then pay attention to proper exercise.