I Hit My Ankle On A Bench Several Weeks Ago.

I hit my ankle on a bench several weeks ago. Pain was bad. Did not break the skin. Swelled a little. But when pressing area surrounding tissue it hurt like hell. Took hot baths (which I know now as the worst thing possible.) Now using ice! A very small sore has now formed on ankle. Has scabbed over and fallen off several times over these past weeks, but it keeps re-forming. Had exrays taken last week. They see nothing. So I figure it's either nerve damage or a tiny bone chip.. Don't know why sore keeps re-forming.Swelling has stopped! Thanks for listening. Ellie