Sprained foot generally refers to ankle sprains, there is no how to reduce the swelling of the fastest and most effective way, ankle sprains need to take emergency measures to deal with, as well as medication, surgical treatment, functional exercise and other ways to reduce swelling. 1. Emergency measures: ankle sprains want to reduce swelling need to rest in a timely manner, need to use a brace to fix the affected limb brake. In addition, the patient within 72 hours after the injury to ice, if necessary, can use elastic bandage for pressure bandage. In addition, you need to elevate the sprained ankle. 2. Drug treatment: ankle sprains need to follow the doctor’s instructions with ibuprofen, diclofenac and other non-steroidal anti-inflammatory drugs. 3. Surgical treatment: after ankle sprain with obvious pain and swelling and joint instability, it is necessary to take incision repair, arthroscopic repair or ligament reconstruction. 4. Functional exercise: patients with ankle sprain I need to wrap the foot with an elastic bandage when the pain and swelling are reduced, and then fix a section of the elastic bandage on the table leg. At this time, the foot needs to be exercised in external rotation, dorsiflexion, internal rotation and other movements. If the patient has a second-degree or third-degree ankle sprain, functional exercises need to be carried out under the guidance of the rehabilitation physician after the acute swelling and pain subside. Such as gait training, strength exercise, etc., i.e., folding running, running and jumping, in situ straight-legged heel lift, etc.. There is no fastest and most effective way to reduce swelling in ankle sprains, so you should seek medical attention in time and follow the doctor’s instructions to take appropriate measures for treatment.