The foot sprain is getting more and more painful, mainly for two reasons: First, after the foot sprain will form a local inflammatory edema, edema period in about 5-7 days, about the fifth day will reach the peak of edema, this process is also called progressive aggravation, is a normal pathological phenomenon, so you will feel more and more pain. Second, due to the foot sprain after the absence of braces or plaster external fixation, or excessive foot activity, will lead to further aggravation of the foot sprain location damage, resulting in local inflammatory edema and stasis, swelling further aggravation, the emergence of more and more pain. Therefore, the foot sprain should be elevated after the affected limb, and the application of dehydration and anti-inflammatory, anti-inflammatory and pain relief, blood circulation and blood stasis of the drug comprehensive treatment, so as to effectively avoid the situation of increasing pain.