The foot has not recovered after a month of twisting to rule out any fracture, you need to take a film to rule out any fracture. If there is no fracture, most of them are caused by ligament damage to the inner and outer ankle. In the pre-treatment of the internal and external ankle ligament injury, the activity should be strictly limited and external fixation with a cast or brace should be done to facilitate the recovery of the ligament. After a month of ligament recovery, you need to go to the hospital to see a specialized foot and ankle surgeon to check the degree of ligament damage, and if necessary, an MRI to further verify the degree of ligament damage, most of which do not require further surgery. If the ligament tear is very severe, some require further ligament repair.