Talus fracture recovery

Hi There, I wonder if anybody can help me.
I fractured my Talus bone about a year ago, with a result of the injury I had two screws put in to assist with the heeling of the bone.
The bone has subsequently heeled, however I still get pain in the back of my foot.
I have recently had a bone scan to see if anything particular is wrong and the results have shown that my ankle is a hot area.
The consultant says that the blood supply is probably limited in the area, so I am wondering if there is now anything I can do to increase the blood flow in my ankle!!