Placement is very important with Lidoderms.

I find they work best for me away from where I feel my PN pain,
and higher up along the nerve route to the spinal cord.

I use anatomy pictures from the net to place mine.
If I put them right on the pain, they don't work.

I've been using them since 2002. Originally they were for a severe MP condition (meralgia paresthetica). After 2 wks of using them every day...the nerve (lateral femoral cutaneous) stopped firing and I had a huge remission. I occasionally get a twinge now, if I overdo that leg, but it was a dramatic improvement for me.

So if you use them, try to do them for several days in a row. Not just here or there. You might find a more complete response.

I don't use the whole patch either. 1/2 is plenty for my back or feet. This way they last longer (expensive)
We have several posts about them on PN if you use the search function there.