How can i help my sprained ankle?

Depends: How long ago was it, how did it occur, how bad was it. Usually it will respond to rest, ice, compression, elevation.

Many possibilities: R.I.C.E. Rest, ice, compression, elevation. Immobilization with a splint or brace may be of benefit in the initial phase of recovery. Oral anti-inflammatory medication may help with the pain and swelling. Once improved, mobilization and physical therapy can help restore strength and function. Healing times may vary.