Mine got so bad I thought I would have to quit work.
Doc said no bare feet, no flip flops, no cheap shoes. Even when sitting around at night at home he said wear shoes with good insoles.
I used a "boot" at night that held my foot upward. ($25 ebay)
Between that and powerstep pro insoles ($65 at doc, $40 online) and a couple of months it has went away.

I feel for anyone who has it and cant get rid of it.