After a minor sprain, the foot can recover in about 7-10 days, in about 3-5 days with the gradual aggravation of edema after the injury, to reach the peak of edema, edema gradually recede, pain and unfavorable symptoms of activity can be effectively relieved, relatively minor sprains 7-10 days or so can basically heal, but the premise is that the foot must be fully relaxed, rest, avoid sprains After the sprain, continue activities will lead to further stretching and stimulation of the sprained part, resulting in further aggravation of the local swelling. Due to the further stretching of the sprained tissue during the activity, the sprained position will heal more slowly to form chronic sterile inflammatory lesions, and in the future, when straining and cold, it is very easy to have pain in the foot. If the conditions can take a cast or brace and ankle brace and other equipment to help, effective fixation, but also effective in preventing further aggravation, can promote recovery.