It usually takes about a month to recover from a sprained foot, and the first thing to look at is whether there is ligament damage, which requires an MRI. By MRI if there is only a contusion of the ligament and the continuity is intact, as long as the elastic bandage or ankle brace is fixed, then use anti-inflammatory and pain-relieving drugs and anti-swelling drugs for symptomatic treatment, the elastic bandage can be removed after one month and the tissue can be healed. If there is a rupture of the ligament, surgical treatment should be performed to surgically reconstruct the integrity of the ligament. After the operation, it is also necessary to carry out brace fixation, and functional exercise will be started after the removal of the brace in about one month, and the recovery period of ligament rupture is about three months.