Sprained foot swelling and pain, usually the first time in the sprain for cold compress, if convenient can be used ice pack cold compress, no conditions can be directly with cold water rinse the affected area, last 5-10 minutes. If the ice bag cold compress, can be wrapped in a towel on the outside of the ice bag to prevent frostbite, cold compresses should be carried out at intervals of 1-2 hours for 20 minutes, within 48-72 hours of the injury using cold compresses, in the cold compresses to elevate the affected limb, and minimize the activities, in order to facilitate the reduction of swelling and pain relief. Yunnan Baiyao aerosol can also be applied, safflower oil is not recommended for external use, massage is not recommended. If the sprain has been over 72 hours can be given hot compresses. If the sprain localized swelling is obvious, accompanied by bruising, ecchymosis, and at the same time can not walk, in this case it is recommended to go to the hospital to rule out fracture.