When muscle pain is caused by sports injury, you should stop exercising immediately. Immediately after the injury to 24 hours, apply cold compress to the pain area to relieve the pain, and the time should be kept for 30 minutes. Do not apply hot compress, massage, massage or use blood-activating drugs within 24 hours. After 24 hours, massage should be used to relax tendons and promote blood circulation, warm meridians and dredge collaterals. Under normal circumstances, topical painkillers, such as voltarin emulsion, can be used together.