Have you tried Lidoderm patches perhaps cut up and put on the area that hurts you so much? I can slightly relate. I had shingles about 2 years ago and it was the nerve that was at waistband and bra level. I don't have constant pain, I was lucky. But every now and then it starts the old tingling feeling. I am so sorry you have such pain. If you are able to put the patch on the nerve root also it might help.
Here is something else you might explore:
http://health.yahoo.com/nervous-trea...698CCC0B8.html
Oh...welcome to our group.
Billye