I don't know if this helps or not, but I had ZERO luck with using muscle relaxers for disk issues. For me using muscle relaxers actually made the pain worse because the little muscle control I did have to try and maintain a comfortable position was lost and it would end up putting me in a more disk/nerve pinching situation.

I had the best luck with anti inflammatory meds (Alieve, Advil, etc) then when it got super painful I would hit the hardcore pain meds.