Here are some pictures to help you visualize :

http://www.aafp.org/afp/20000401/2109.html

Figure 1 is placement of bursae.

Figures 2a and 2b show nerves, 2b shows the femoral nerve exiting the inguinal ligament.

This link is for a 3D picture of the nerves in the lower body.

http://www.healthline.com/vpbody/ner...-spine-to-foot

You can rotate it to see back and front. Only two small sensory nerves come out down the front of the leg and most are in the back. I assume if yours is inguinal, it is in the front.

Placement of Lidoderm patches at the spots shown on Figure 2b may help your pain, if the inguinal location is the culprit.

Wearing tight clothing is also a culprit, jeans, tight underwear, or tight belts.

I use Lidoderm for my knee pain sometimes. I place 1/2 patch behind the affected knee just above the bend in the back.
Lidoderms have shown comparable effects with NSAIDs like Celebrex:
http://www.zhion.com/joint_bone/Lidoderm.html

If your nerve compression is in the groin area, I'd place the patch up there to intercept the nerve higher up. It may be more effective that way. I have MP in my right leg from a C-section surgery,and Lidoderms were very successful for me.
I had to use it every day, and by the end of 2 weeks the nerve stopped firing so much. This remission has held 90% over several years now.