Thanks for your response! I had relief from the scalene block too. But that's more like a numbing agent, so Im thinking that if you inject there anywhere, you will have relief. I've had botox injected into my neck and shoulder musles, but it did not provide pain relief.

I don't think the fact that it doesn't work rules out TOS. Have you had other tests that confirm, like MRI or EMG or physical exam?

I think we are all scared about making the right decision about surgery. So many conflicting opinions and theories along with outcomes that aren't always successful. It's all very confusing:confused