Mucker,
Did they try any of these during your PT sessions?
Heat?
Ultrasound?
Massage - addressing any spasms, knot or triggerpoints?
Electrical stimulation-{IF, muscle or TENS- IF was the best for me}
Low level laser? or LED light therapy?

Those all helped me with my muscle aches & pain- is your pain from nerves or muscles or both?

I only had ulnar nerve pain for a few months and it was due to spasms & extreme tightness in my neck muscles.
In many ways it is still all related, muscles can affect the nerves and the nerves can affect the muscles.