Persistent pain after sprain on the prominent part of the inner side of the foot, if it is only soft tissue injury, daily care and medication can be carried out first; regarding ligament injury and osteoarthritic injury, plaster immobilization or brace immobilization is needed, and timely surgical treatment should be carried out if necessary. 1. Soft tissue injury: need to pay attention to rest, and elevate the affected limbs to avoid local weight-bearing, if there are pain symptoms, should follow the doctor’s instructions for oral non-steroidal anti-inflammatory drugs, such as ibuprofen, aspirin and so on. 2. Ligament injury: if ligament injury occurs, with the above treatment effect is not good, you need to choose as soon as possible to fix the support, or fixed with a plaster, to prevent the ligament from continuing to tear. If the pain is strong, you can also take aspirin for pain relief. 3. Bone and joint injuries: mild bone and joint injuries can be treated conservatively to alleviate the symptoms, such as brace fixation, plaster fixation, etc.; if it is a more serious bone and joint injuries, or tendency to fracture, need to be operated as soon as possible for internal fixation treatment. It is impossible to assess the severity of the condition and the damage by oneself after the sprain of the inner side of the foot, it is necessary to consult the doctor in time and analyze the condition by X-ray examination and other imaging examinations.