Having the right chiroprator makes the difference.....just like any of the other professionals that we all see...........
Some people on here praise their pain clinics. My experience at the pain clinic was horrendous. The anesthesiologist there basically said the problem was "all in my head" asside from some mild cervical arthritis. He did a facet joint block, which had no effect, and then was actually pissy to me because I was denying results. I get achy and a heavy feeling over my collarbone and up to my face, but my pain is all in back....like a burning golf ball to the left of my spine. He informed me that there was no way that I had TOS because my pain was in back, not in front. It took a lot of pressure from my husband to have him reveal that he actually never treated a TOS patient (but he knows that I don't have it....

, sure)
Some people on here rave about their physiatrists. Mine called me a malingerer and told me to "suck it up and work through the pain."
My chiro has been a godsend ! Of course he can't "fix" TOS......nothing is going to make that crimped brachial plexus substantially more roomy except surgery. What he can , and does do, is cervical traction (makes it worse for some, but helps me a lot), electrical muscle stim to relax the muscle spasms, massage, and spinal adjustments (cracks) to get my stuck vertabrae gliding better. I have do have a lot of cervical and thoracic issues too. If he can loosen that up, there will be less muscle spasms. Spasming/inflammed muscles are going to add more pressure to the cramped bp area.
Best of luck finding a formula that works for you