What is the best way to treat lower back pain from sciatica due to a tumor in the lumbar area? on tarceva (erlotinib) for the cancer but how to stop the pain?

Cancer pain: Treatment in this context is much more difficult than usual sciatica. The best option is to consult with a pain medicine specialist who can guide you through the options of cortisone injections, nerve blocks, radiation, acupuncture, biofeedback, meditation, or long-acting narcotic medications.

Get doctor advice: If your pain is due to metastatic cancer to the lumbar spine, radiation therapy should probably be administered. A combination of pain medications is often effective, and should include a narcotic analgesic and a non-steriodal anti-infllammatory agent. If the pain is radiating down your buttock and leg, addition of a medication for neuropathic pain could also be added. Please see your oncologist.

Ask your Doctor: If epidural steroid injection is OK to do. Sometimes it is sometimes its too risky. Depends on your situation.