Patients who develop a muscle strain usually do not need to take anti-inflammatory drugs. If there is significant pain after a muscle strain, you can take oral non-steroidal anti-inflammatory drugs, such as nimesulide, diclofenac sodium, clonoxicam and other drugs to relieve the pain that occurs after a muscle strain. However, within 24 hours of the muscle strain, the main treatment is to apply cold compresses to the injured area to avoid aggravation of swelling and pain in the muscle strain area. After the appearance of muscle strains, it is important to limit the activities of the injured area for 2-3 weeks to create conditions for muscle strain recovery. After 24 hours of muscle strain, you can apply drugs that activate blood circulation and remove blood stasis to promote the absorption or decreasing of bruising and swelling at the muscle strain site to promote the recovery of blood flow at the muscle strain site to facilitate the repair of muscle strain and restore the normal flexion and extension and force activities of the limb.