cervical disc degeneration, bone spurs, pain...

I have been given an Rx for PT for neck pain - arthritis in C5, C7 (and bone spurs).  I've had PT in past (whiplash 12 years ago, pain behind shoulder blade a few years ago) and it made no difference.  I really can't afford the $60/week co-pays this is going to cost me and am wondering what PT can do for me anyway.  It can't heal the arthritis or re-inflate the discs.  My symptoms include spasms, knife-like pain behind shoulder blade, tingling in neck, arms, hands and fingers, limited  mobility in neck.  Some insight would be appreciated.  Thanks.

[Kar37]

I forgot to add - I also got Rx for muscle relaxers.  They help with the spasms.  Rx for naproxin - helps some with pain.  Nothing relieves the popping and grinding every time I move my neck.  And the m. relaxers wipe me out - I can hardly function for 24 hours.