I see you've found the subforum for meralgia parasthetica. It's not that active, but there's some good info on it, especially in the googled list of info links Jo55 posted:

http://neurotalk.psychcentral.com/thread14108.html

The condition itself is not well understood, though it seems to involve compressive forces on the lateral femoral cutaneous nerve. Most neurologists would tend, for such nerve pain, to prescribe anti-epileptics before opioids.

Some have had success at symtpom relief with these, some with radio frequency ablation of the nerve, some with losing weight and physical therapy--no one size, unfortunately, seems to fit all here.