When the right foot is broken, the body weight of daily activities is often shifted to the left foot, thus causing pain on the left side of the foot. In this case, you need to rest properly, it is recommended to use walking aids such as crutches to reduce the pressure of the body on the left ankle joint, and pain can also be treated with some painkillers. 1. Cold compress: about 5~10min can reduce the blood seepage caused by the local injury and prevent the swelling from worsening. 2. Support: plaster or ankle brace for effective immobilization, can let the injured ligament in a relaxed, resting state, help the healing of the injury, and can avoid the aggravation of the injury. 3. After immobilization, the position of the foot should be elevated, usually in the lying position, and the height should be higher than the level of the heart, so as to reduce the aggravation of local bruising and inflammatory edema through the effect of gravity. 4. Medication: Oral anti-inflammatory and analgesic medications that activate blood circulation and improve circulation, such as clonoxicam, should be taken under doctor’s supervision, as these medications can effectively improve blood circulation, promote inflammation metabolism, and alleviate local pain. If the pain in the left foot cannot be relieved for a long period of time, further CT scan is needed to determine the cause of the disease. The above medications should be used under the guidance of a doctor, avoid self-medication.