Local swelling of the lateral side after a broken foot can be treated by the following methods: First, the affected limb is prohibited from bearing weight for 1-2 weeks, local braking and elevation of the affected limb is beneficial to venous and lymphatic reflux. Second, local intermittent cold compress treatment, 30 minutes each time, 4-6 times a day, can reduce local edema, relieve pain symptoms. Thirdly, after 5-7 days after the injury, the swelling can be stabilized and replaced by hot compress treatment, with the temperature controlled at 38-40℃, which can promote the local blood circulation and accelerate the residual swelling and inflammatory reaction to subside. Fourthly, oral administration of blood activating and stasis removing Chinese medicines, such as Cao Wu Jia Su tablets, Pan Long Qi tablets, Hu Li San capsules, etc., can promote the rapid decreasing of swelling in the injured area and reduce the pain symptoms. Fifth, after the swelling is reduced, you should insist on actively flexing and extending the toes and ankle joints to avoid adhesions and stiffness at the injury site.