I had my RFA (right 1/18, left 2/1) and, as usual, it takes some random number of weeks to actually take effect. Which was always odd, the nerves are burned, destroyed, dead, gone. Why is there pain? Best answer I ever got was "it's like getting a limb cut-off, it still itches for a while". I guess there's also some trauma to the area. In any event, it takes a few weeks and I've been waiting patiently. The pain had been pretty bad last week, since I was anxious to get off the 50mcg/hr Fentanyl and asked my doctor to put me on the 25mcg/hr. Finally, Saturday I woke up with no pain. It's weird for it to happen so fast, Friday in pain, the next day no pain. Sunday was just as good. Monday wasn't as bad as last week, but it was more painful. I'm in an IT job and this sitting all day is hard on my back, especially if I'm not sitting like I'm supposed to. Overall though, I think the pain is starting to diminish in the lumbar. It makes the SI joint pain stand out a bit more, but that isn't (yet) as sharp of a pain.