I had the surgery on both hands 7 months ago but one hand is still numb. That is the problem.
You need to find a competent massage therapist, reflexologist who can find a pressure point to relieve the pinched nerve. It may be in the neck and leg. I know a therapist who routinely fixes this issue, which isn’t in the wrist but manifests itself there.
They need to go in and cut more. Sorry.