Can Lyrica help injured nerves heal or is the injury/damage a done deal?

[Hopeful]

Needed spinal surgery for a ruptured disk which had caused severe nerve root impingement. Numbness, bowel and bladder muscle weakness, "charlie horse" sensation in calf and foot, foot drop, all occurring before the surgery was performed. Still experiencing the above mentioned though the calf and foot are about 50% better. Will Lyrica help the injuries/nerve issue heal? It has been four months since the spinal surgery was performed. Or will I have to deal with these "symptoms" from here on out and continue to take medications. Presently taking Lyrica and have been able to cut way back on the hydrocodone and Flexeril. Not sure if this is due to my body healing or from taking the Lyrica.
Also, occassionally, if I move too quickly or bend or turn too quickly, I get a sensation of being stuck with a live electrical wire in my spine where the surgery had to be performed. Will this go away?