Just a suggestion....

I don't think Lidoderms work on the bottoms of the feet.

I'd put them on the insteps instead. That is where both major nerves enter the foot.

A 1/2 patch is enough for each foot.

Also to try:
1) 1/2 patch around the top of the ankle before the foot starts.
2) if you think your issues are ganglion centered, then putting over the affected ganglions over the spine is best. This numbs them at the source.

This link shows yellow nerves...
http://www.northcoastfootcare.com/pa...e-Anatomy.html

hit Ctrl + scroll wheel to enlarge. The 3rd photo (anterior) in the first array shows the main nerve coming down in the instep.

This link shows the nerves in the foot more clearly:
http://www.northcoastfootcare.com/pa...-the-Foot.html

This website is excellent for viewing the feet, anatomy and where the nerves are and go.

Most people see no effects from placement on the bottoms of the foot.

Some experimentation is necessary. For example I find some foot relief when I place a 1/2 Lidoderm behind my knee, on the thigh side of the bend. This hits the peroneal nerve that passes there to go down to the foot.