The swelling of the broken foot has not been reduced for a month, it is recommended to go to the hospital to find out the cause of the disease, the possible causes include ankle impingement syndrome, ankle lateral collateral ligament injury, ankle fracture and so on, the treatment method includes general treatment, medication, surgical treatment and so on. 1. Ankle impingement syndrome: generally requires surgical treatment, i.e., arthroscopic cleanup, osteochondral and synovial cleanup and resection. 2. Lateral collateral ligament injury of ankle joint: if partially torn, it can be fixed by plaster, elastic bandage, etc., and at the same time, cold compress, oral indomethacin and other methods, anti-inflammatory and pain relief. If the ligament is completely torn, ligament repair is feasible. If there is displaced fracture, open reduction + internal fixation with screw plate can be performed at the same time. 3. Ankle fracture: firstly, anatomical reduction can be carried out; if the reduction is unsuccessful, incision reduction and internal fixation with steel plate can be carried out at the same time. If the above symptoms do not get better, or are combined with other symptoms, it is recommended to go to the hospital to find out the cause of the disease and under the guidance of the doctor to carry out regular treatment. The above medications should be applied under the guidance of a pharmacist or a doctor, avoiding blind self-medication.