Shooting pain down top of thigh 8 weeks post inguinal hernia op.dr thinks from scar tissue pressing on nerve.will scar tissue on nerve go away on own?

No, but evolve to...: Scar is forever and will not disappear completely, but evolve through its expected healing process, which is most noticeably over the first 6 months after surgery and maximize its maturation around 2 yrs. How to handle such post-surgical pain? Time & patience are the best medicines. So, it is ok to just watch and see as long as slowly but surely getting better day by day. There is no magic around.