Stonger pain meds for Carpal Tunnel?

My fiance has carpal tunnel in both of his hands one more then the other! He has had in for awhile now and it is just getting worse as far as pain goes! He is scheduled to see a new specialist and have surgery soon! He has only been taking tylenol and ib profin for the pain! That is no longer helping! He went to the Er a couple of weeks ago cause the pain got so bad! He was given a small script for Vicodin which helped allot and he did not have to take that much! He went today though to see his new Doctor who refered him to this specialist he is going to be seeing! This doctor though prescribed him this medacine called ..Voltaren..... It is not a narcotic and it is not helping at all! Should he call his Doctor and tell him. Is it un common to recieve stronger pain meds for carpal tunnel or do think his doc just wanted him to try this first? Any ideas? What should we do! It hurts him really bad! He is wearing arm braces and id doing all of these other things his doc wants him to do.