I found that a heating pad helps. Also my Dr put me on Savella. That helped a lot for me. My shoulders are the worst also.

Horizant (extended release gabapentin) and amitriptyline. Shoulders for me too. I used salon pas patches way too much too.

Muscle relaxers and trigger point injections really help me out!

Oh and doing like 10 mins of ice, because all heat doesn’t always work for me, then 20 mins heat. A rheumatologist told me that if you’re doing ice and not following it with heat it’s gonna make any of that kind of muscle/nerve pain worse so I am really careful to do both now.