• Contrast bath---It is a form of treatment where a limb or the entire body is immersed in warm water followed by the immediate immersion of the limb or body in ice water. This procedure is repeated several times, alternating hot and cold. Note that the treatment should always end in the ice water, as heat will induce the body's inflammatory response, while cold helps to decrease inflammation.

Might physiotherapy will b helped u to fix the pain and inflamation..

You cannot walk over a sprained ankle with a brace . Try getting a synthetic walking cast instead which should be kept for 6 weeks.