My physical therapist suggested I try a TENS device to help with pain management and let me have one to try.
TENS is an acronym for Transcutaneous Electrical Nerve Stimulation.
Mine is about the size of my cell phone with wires extending to small "sticky" electrode patches which the PT showed me where to place on my back. It can run on either regular house current or 9 volt batteries, the latter allowing me to be somewhat more mobile.
The basic principle of TENS is that its vibrations interfere with the pain signal. I've heard that it works on about 50% of the people 50% of the time, but I thought it was worth a try, as the pain I'm experiencing after about an hour or two of sitting or standing is unrelentingly intolerable, and this definitely limits my activity.
So far it seems to be working well enough. The pain isn't completely gone but it's bearable. When it gets bad I turn it on for about 15 minutes and I do feel better. And as as I'm told sometimes happens, this "better" lasts for a while longer. When the pain returns I give it another session.
While I don't much care for having wires running from my body to yet another thing to haul around in my purse, the TENS device has given me a little more mobility. And it does not impair driving.
By no means am I back to my usual functioning self, but it's given me some ability to do some things that were simply too painful because they involved sitting or standing for more than an hour or two.