Muscle soreness after exercise may be caused by lactic acid buildup, muscle strain, etc. Usually do not continue, you can relieve the symptoms through general treatment and physical therapy. 1. Lactic acid buildup: After exercise usually leads to lactic acid buildup within the muscle, producing acidic metabolites that stimulate the peripheral nerves causing the soreness. Patients can usually get relief through timely rest, hot towel warm compresses, and appropriate massage. 2. Muscle strain: muscle soreness after exercise may be caused by muscle strain due to strenuous exercise in the process of exercise, resulting in muscle soreness. Patients should immediately rest, apply local ice packs, apply pressure bandages, and elevate the affected area. If necessary, aids such as crutches can be used. Pulsed ultrasound therapy can also be used to alleviate secondary injuries and has a therapeutic, protective effect on strained muscles. All of the above medications should be used under the guidance of a doctor, avoid self-medication. If the above symptoms occur, it is recommended to go to the regular hospital in time for early and regular treatment.