I too have a pretty bad case of tendinitis in my wrist. I have seen a hand specialist about it with little relief. We tried putting my hand/wrist in a fiberglass cast for 6 weeks, steriod injections and antiinflammatory drugs - none which have "cured" my carpal tunnel. I am now seeing a chiropractor and after three weeks my wrist is feeling a bit better. He has given me some exercises to do to help strength the joint and these seem to be having a positive impact on my wrist.

Hope this helps!