After a foot sprain, there may be only local soft tissue injury. If the swelling is obvious, bone fracture, fracture or dislocation cannot be excluded. If the swelling is obvious, the first thing to do is to improve the local X-ray examination, and if necessary, further CT and 3D reconstruction examination. After the examination to exclude the bone fracture and other serious cases, if it is only a simple soft tissue injury, first of all, you need to rest, should not walk around and strenuous exercise in the short term, within 24 hours of injury, you can apply ice, which has the effect of reducing swelling and pain; after 24 hours, you can apply hot compresses, with blood circulation and blood stasis drugs, such as swelling and pain aerosol local spray, can help promote recovery. It can also be combined with ointment, such as flurbiprofen babu cream topical application, also helps to promote recovery. Non-serious sprains can return to normal after 1-2 weeks of rest and treatment.