The sequelae of foot sprains are mainly two aspects: 1, habitual foot sprains, is due to the first time after the injury did not completely heal before the start of activities, resulting in ligaments become lax, there is joint instability, it is easy to appear habitual sprains. In this case, you should pay attention to wear high-top shoes, and try not to walk too fast, try not to walk on uneven surfaces. Otherwise, it is easy to lead to further aggravation of local damage, over time there will be degeneration of the joints, inflammation of the proliferation and lead to further aggravation of the condition. 2, chronic pain in the feet, mainly due to the formation of inflammatory foci in the local area after the injury, there is no full recovery will lead to the persistence of the inflammation, iterative, and finally become a chronic foci, in the cloudy days and rainy days, as well as walking a lot of time, cold time will be the most important. The pain will occur when you get cold. In this case, you should use warm water bag or hot water for scalding more often to increase blood circulation, promote local inflammation metabolism, and can make the surrounding tissues become relaxed. In normal times, we should pay more attention to keep warm, avoid being cold, can carry on the blood circulation and eliminate blood stasis to relieve the tendons and collaterals of the poultice external application, can also play a very good therapeutic effect.