After stretching your leg, you should go to the hospital for a detailed examination to rule out serious conditions such as rupture of tendons, ligaments, and muscles. If only soft tissue contusions are involved, brake rest and supportive symptomatic treatment can be used for relief and recovery. In the acute stage, intermittent cold compresses can be applied, i.e. within 24h after the injury, and after 24-48 hours, local warm compresses can be applied. Through the sequential treatment of cold compresses and warm compresses, local swelling and pain can be effectively reduced, local inflammation can be relieved, local hematoma absorption can be facilitated, and the recovery of tendon and ligament injuries can be facilitated. At the same time, you can take drugs to activate blood circulation and remove blood stasis orally, such as Bone Injury Recovery Pill, or apply drugs to activate blood circulation and remove blood stasis externally, such as Jinhuang Paste of Chinese medicine. When the local swelling and pain are not obvious, local spectrum irradiation and baking can be performed to facilitate the recovery of local soft tissues. If there is a change of condition, aggravation or limb dysfunction, promptly go to the hospital for consultation.