A sprained foot should be treated according to the RICE principle. If there is serious ligament damage or fracture, plaster immobilization or even surgical treatment may be needed. 1.RICE principle, R refers to rest, should immediately stop the activity, reduce the weight of the affected limb, I refers to ice after sprain within 72 hours of ice can reduce the pain, reduce local swelling, C refers to the pressure bandage, can be on the soft tissue compression hemostasis, at the same time to play a certain role in immobilization, E refers to the elevation of the affected limb, can reduce the swelling of the affected limb. 2. foot sprain if there is serious ligament damage, tear or even rupture should use bandage, plaster fixation, if there is a small piece of torn bone, affecting the smoothness and flatness of the joint surface, should be surgical incision reset. It is recommended that people with more serious foot sprains should consult a doctor in time, have an X-ray and other examinations to exclude the possibility of fracture, etc., and cooperate with the doctor’s instructions for active treatment.