Thanks for posting,
Well it shows that you had an iatrogenic injury
(procedure induced) during your last epidural (most probably) and that it caused a bone perforation. Bone injuries are usually very painful and might require long term treatment even after doing a bone graft to actually control the pain. At times, the pain hardly even fades away completely. At one point, you might be required to accept and live with the pain with use of analgesic
(taken for short durations to avoid dependency). You will have to allow yourself to through the procedure first and 6 pain drugs is not very advised.
Hope this helps