I think anything is possible...after reading for years here and elsewhere.

There is a huge storm front moving across the country...this can also lead to more pain. I typically always get pain from low pressure storm surges.

If you have the patches, put one over the lower lumbar area on that side, and see what happens. They don't stick well, so you may have to tape it down. It takes a bit of time for the Lidocaine to diffuse thru to your lower back. But I do recall you are on the thin side, so it might be faster for you.

MP pain goes down the FRONT of the thigh only. Sciatic pain is typically down the back of the leg. MP ends at the knee area, and is more of a stabbing pain, rather than burning. I put a half patch at the area under the inguinal ligament at the top the the thigh, near the hip, for MP intervention. There is the femoral nerve that comes out near the midline of the leg... which is different and innervates muscles.

Figure 2B on this site shows those 2 nerves and where to catch them.
http://www.aafp.org/afp/2000/0401/p2109.html

Figure 2A shows the sciatic nerve coming down the back of the thigh and buttocks. This placement is best on the very lower back, where the main nerve comes out the the L4 or L5 area.
The buttocks are too thick and may block the lidocaine actions.

It is best to catch the nerves higher up nearer the spine, than at the endpoints you feel pain. The lidocaine doesn't work well
at the endpoints, but will numb a while nerve axon instead. So placement is everything with these pain patches.