Posted 11/29/2015 10:58 PM (GMT 0)
A nerve that has been compressed by a herniated disc, as your was, becomes inflamed and irritated and the nerve hyper-sensitive to afferent stimuli.
The good news: You have had successful surgery that has decompressed the nerve root.
The bad news: Your nerve remains irritated. Nerves have "memory." A nerve once irritated is often not quick to return to normal. Nerves can remain irritable and hostile for 6-8 months after successful decompression surgery.
Helpful ideas: Short-term use of steroids at a low dose (prednisone or a Medrol pack) can often be helpful. Be mindful to not overuse corticosteroids, as there are serious consequences of indiscriminate use (secondary adrenal insufficiency, the most serious).
Perhaps re-visiting your physical therapist. Healing can lend to the development of scar tissue along a nerve's protective sheath of connective tissue. Tethering of scar tissue can irritate an otherwise healing nerve and trigger a cycle of irritation, pain, more irritation, more pain. Your PT has at his/her availability specific modalities and stretches that should promote healing.
Medications to dampenen nerve threshold, gabapentine, lyrica, neurotin.