I'm not promoting a product here, just relating my experience with the Carpal Therapist. I've had very bad pain/numbness for years and I won't do surgery (not with a 30% failure rate).
I first used the Carpal Solution. It worked just ok; the pain was better than before, but not by much. The Wristrac is garbage and I sent it back for a refund. But the Carpal Therapist is another animal. It works unbelieveably well. My pain went from bad/aching/burning to zero (no kidding, ZERO) in less than 2 weeks. I've not found anything like it at all, and only regret not getting one sooner. Those guys should get a Nobel prize. Just google the name and you can learn more about it than I can say here.
Good luck.