Since the treatment of soft tissue injury after ankle sprain is so important, and since ankle arthritis is so difficult to deal with when it forms, what treatment principles should we adhere to and what treatment methods should be used when we are faced with such a patient? 1. To determine whether ankle fracture exists or not? For those with fractures and dislocations, the first priority is to reset and fix them, then adhere to the RICE principle, and at the same time use drugs such as dehydration and swelling reduction, hemostasis, blood circulation and blood stasis. 2.Determine whether there is a ligament rupture? Once the ligament rupture is determined, the ligament should be repaired and reconstructed immediately. 3.Excluding the above two cases, for those with simple soft tissue injury, adhere to the principle of RICE and use appropriate medication at different times. The mechanism of swelling after soft tissue injury: capillary injury bleeding, venous return obstruction, soft tissue cell edema. I adhere to the above principles, combined with the mechanism of swelling after soft tissue injury, often made the following treatment: 1, hemostasis: braking, ice and pressure (within 48 hours after injury), supplemented with drugs (Yunnan Baiyao, hemostatic min, etc.); 2, improve venous return, dehydration to eliminate cellular swelling: elevate the affected limb, the use of hypertonic dehydration (mannitol), hypotonic dehydration (glycerol fructose), improve venous function ( Sodium hesperidin, etc.) drugs by sedation, external magnesium sulfate or traditional Chinese medicine to dehydrate and eliminate swelling; 3. 72 hours later, use blood-activating drugs and physiotherapy to improve blood circulation; 4. It is recommended that patients pay attention to rest for 3-6 weeks after injury to prevent soft tissue re-injury. After long-term clinical observation, the authors found that all patients with ankle sprain who were given the above standardized treatment could obtain good results.