Unfortunately, sub doesn't work very well as a pain reliever. I know they use it for pain in other countries on very low doses, under 1 mg. but we don't have that here. As far as stigma, there is definitely a stigma to
methadone and its something that is very hard to get off of, but if you do decide that the pain is such that you have no choice but to go in that direction, I can say that once you get stabilized on a specific dose which is right for you, you wont nod and get all loopy as long as you don't take more than the perscribed amount. And it works very well for pain. Just be sure before making that leap that its what you need to do and have tried everything else.