Hello and sorry you are dealing with so much pain for so long!

It would be more helpful for all of us if you could describe the type of pain you are having ie., is it burning, stabbing, aching, sharp, electrical, etc. I did see that you mentioned resent onset of burning pain is this in the same area you are describing the pain that keeps you from walking/standing?

Also you mentioned pain starts after you start walking - is that the only time it causes you pain?

When the foot does burn do you have shoes/socks on or off or does it matter?

Is this pain in the same place as the original sprain or somewhere else?

Has anyone injected things like lidocaine or steroids and if so did that help?