Rexeh
Bluelighter
^They offered me an injection similar to yours, I am not sure about what they use but it was also epidural. They wanted to inject some sort of pain killer/blocker between my vertebrae (I have Scheuermann's kyphosis which damaged 5 of them) but I chickened out since I was too afraid about having an injection so close to my CNS. Also my needle phobia is a big problem, "butterfly" needles I can handle, but a needle in my spine would freak me out as well so you're not alone if that helps you. 
I'm not sure if they would give you something to relax if you say you have a needle phobia but I think they would apply a local anasthetic (sp?) first when giving you the injection.
It seems to be the first treatment used by many pain management doctors here though and some people have told me that it actually works very well but only for a limited time IIRC.
Good luck with your injection and let me know if it works, I might try it as well then since it beats taking painkillers every day to be honest.
I don't know anything about Methadone so I can't help you with that even though I would like to... in which form does your Methadone come in? I know that there are wafers, pills and syrup but other than that I know nothing about it except a few things I've gathered on this forum.
Peace o/

I'm not sure if they would give you something to relax if you say you have a needle phobia but I think they would apply a local anasthetic (sp?) first when giving you the injection.
It seems to be the first treatment used by many pain management doctors here though and some people have told me that it actually works very well but only for a limited time IIRC.
Good luck with your injection and let me know if it works, I might try it as well then since it beats taking painkillers every day to be honest.

Peace o/