The MP pain in most people, is generated not where you feel it.
Many people have compression of the nerve as it exits the abdomen...or at the back near the L4-L5 exit. (varies anatomically for people genetically).

Using Lidoderms on the bottom of the feet, for peripheral neuropathy is less effective than on the instep, where the nerves are, even though felt at the bottoms.

I found Lidoderms ineffective for my MP pain, where felt in the thigh muscle.

So it depends on what your MP is from. Mine was from abdominal surgery. (C-section with exploratory).

Numbing the tips of the nerves therefore is useless because the lidocaine in the patch does not move far from that location.

I would wonder if you have MP at all...but some other pain condition?
I never had side pain at all, only front thigh pain. Some people call any thigh pain MP... and there are other causes. Such as trochanteric bursitis or myofascial pain of the thigh.