Some 6 Hours later: TOTAL SUCCESS and final conclusion!...

The prior application of Biofreeze 3.5% Menthol, both in spray and roll-on gel forms totally prevented any burning or stinging when the 0.075% Capsaicin contained in Zostrix was applied 45 minutes later...

Pain level in both feet is still at 1 to 2, instead of the usual 6 to 7, since application of the Capsaicin/Menthol patch yesterday, showing that both methods - cream combination or ready made Capsaicin/Menthol Salonpas patch - work very well to control certain types of Neuropathic pain...

The advantage of the Salonpas patch is that it's quickly applied, requires no gloves, creates no mess and allows the wearing of socks immediately afterward. The drawback is that it creates bulk when used on top and bottom of the foot, making it difficult to fit in a normal size shoe. Also, the patch shape makes it more difficult to cover the entire foot, leaving some uncovered areas still prone to pain, but it's the perfect solution when traveling by air in these days of check-out restrictions...

The combination Menthol/Capsaicin creams, though a bit more messy to apply, is ideal for home use as compounded shapes, such as a foot can easily be 100% coated and they will cost much less than the patches in the long run...

Thank you Qutenza: your clinical study pitting 8% Capsaicin expensive prescription patches against a control 'placebo' 200 times weaker at 0.04% Capsaicin, STILL showing 75% comparative efficacy, truly opened my eyes: sometimes, less is much more..

Note: while 0.04% Capsaicin patches are not currently available commercially, the Salonpas 0.025% Capsaicin/1.25% Menthol patches, available over the counter at $4.81 for 6 pieces have fit the bill very nicely...