Suggest Treatment For Sprained Ankles

Hi. I sprained my left ankle a few months ago. It has not been right since. I m in constant pain!!! It hurts to walk upstairs and downstairs. Hurts to put to much pressure on it. I often sit Indian Style and I have to move after mere minutes. My ankle and entire foot goes numb and I have pain shooting thru my ankle. It constantly clicks too. When I sprained it, my dr did not even do X-rays. Just gave me a boot to where. It was also the size of a grapefruit. What could be going on?