neuropathic pain
"I have suffered low back pain from spondylolisthesis with peripheral neuropathy for 40 years, neck pain from damaged disks at C5-C6 and C2-C3 for 20 and 10 years respectively.  Each center of pain radiates outward locally and peripherally.  After ALL the qualifying trials-oral meds, tigger point injections, epidural steroid injections, and rhizotomies- failed to provide adequate relief, an intrathecal pain pump implanted constantly delivering DILAUDID and BUPIVOCAINE to my spinal canal, which has worked well with some caveats.  Raising pump rate enough to bring pain < 3 on 1-10 scale creates too much sedation to function and disrupts sleep-wake cycles.  Adding oral Trileptil has shown substantial pain reduction with no side effects noted."