There are many causes of foot swelling, the most is local soft tissue injury or a local trauma caused by fracture, if the foot swelling is caused by trauma or fracture, the methods to reduce the swelling of the foot are: cast braking, elevating the lower limb and using anti-swelling drugs, the details are as follows: first, cast braking, through the cast braking can stabilize the fracture end, which can reduce the local Second, if the lower limb should be elevated after the cast is fixed, this is conducive to the return of blood to the limb and the swelling of the foot; Third, you can use anti-swelling drugs, you can inject mannitol intravenously to quickly reduce the swelling, or you can take oral abortifacient tablets or Veritin tablets to relieve soft tissue swelling.