The methods to reduce swelling after ankle fracture include braking and immobilization, local hot and cold compresses, and rehabilitation treatment. 1. Braking and fixation: after ankle fracture, it will cause tissue and blood vessel damage, resulting in inflammation and exudation, leading to local edema, so the key to the early stage of ankle fracture is to brake and fix the ankle to reduce the tissue and blood vessel damage, so as to reduce the edema caused by exudation. 2. Local hot and cold compresses: within 72 hours of the early stage of fracture, the oozing of blood vessels leads to oedema, at this time, cold compresses should be applied to shrink the blood vessels to reduce the oozing, and after 72 hours of fracture, hot compresses should be applied to speed up the local metabolism and blood circulation, so that the oedema fluid can be discharged quickly. 3. Rehabilitation: during the recovery period of the fracture and bed-ridden period, active muscle contraction exercise of the lower limbs and activities of the toes should be carried out under the guidance of the doctor. 8 weeks after the formation of good bone scabs, the patient can go down to the ground gradually, and the active rehabilitation exercise can promote the blood circulation, which is conducive to the subsidence of the swelling. Patients with swelling after ankle fracture should actively seek medical examination, standardized treatment, and rehabilitation under the guidance of professional doctors to promote recovery.