Welcome to healingWell!!!
Sorry to hear about the pain you are in. I am not very familiur withe they tens machine or medications you have listed. I would deffinatly pop over to the Chronic Pain forum as Joy suggested as they have many more members using these products!!!
Cellcept, Prednisone, carvedilol, Eliphos, furosemide, sodium bicarbonate
PRN: Imitrex, hydrocodone, Ambien, Flexeril, Ultram,
If God brings you to it, he will get you through it!!