Nerve pain (Neck, sciatic, back, shoulder) have a particular physical reaction (overreaction almost) that is best addressed through consistent alignment work.
That alignment which also includes mobility and breathing allows for the body and mind to release tension surrounding the source of the pain.
You've probably experienced that frightening "grab" before. This reaction to the nerve impulse or information immediately being sent back from an area and the reaction is an instantaneous contraction of muscles surrounding the source.
The alignment work and resulting tension or muscle release puts us back in a place to progress.
Neutrality or the ability to "begin again" if you will. Don't try to address the underlying issues causing pain until you are in a place free of as much tension, inflammation, and unnecessary muscle contraction that is the mind and bodies attempt to protect a given area of perceived vulnerability.
Check out Static Back as a great place to start and end your day with the idea of alignment and neutrality