I had Botox injections into my scalenes X3. they did give me relief, seemingly for me, it was a lasting effect. I did have my right eyelid to twitch but no one thought it was from the Botox. Later, I hopped on the Internet and did research on the effects of Boxtox into the scalenes and it was noted that one of the side effects were eyelid drooping. So, I guess I was right after all. the doc I was going to quit giving Botox injections, so I haven't found another doc yet to do that. After I had good results on the second injection, the doc wrote a letter of medical necessity to my high risk health ins and they agreed to pay for the injections, even though the know it's experimental, for one year. Took the 3rd and then he quit. What luck. but I did get relief.