The fastest way to reduce leg swelling is as follows: First, elevate the leg: it facilitates blood return to the leg, which can accelerate the swelling. Second, medication: you can use mannitol drip to accelerate the swelling, or you can also take oral elimination-M or Veritin to eliminate soft tissue edema. Third, functional exercise of the leg muscles: including the dorsalis pedis muscle, calf gastrocnemius, tibialis anterior muscle, and the muscles around the thigh, including the quadriceps and hamstrings, isometric functional training of these muscles can make the muscles play the role of muscle pump, which can accelerate blood return and accelerate the swelling of the legs to subside.