I had this procedure done just over 6 weeks ago and no improvement so far. In fact I'm in more pain now than before the procedure. Definitely getting frustrating, especially since the insurance didn't cover this procedure and it was close to $13,000 out of pocket for one disk. the doctor said he could split the dose between two disks and it would still work. maybe that's part of the reason it's not working. I'm trying to be patient since I'm reading that this can take 6-8 weeks to see improvement. We'll see....