You could try Biofreeze rub on gel. It can often reduce burning considerably, but it does wear off over time and need to be reapplied.
You can find it now at iherb.com or Amazon.com

If you developing RSD (now called CRPS), then ice is not useful and sometimes harmful.

Another option is to get Lidoderm patches and try 1/2 patch on the top of your foot and see if that blocks some signals.

Some PN pain is generated in the spinal cord along the dorsal roots. If you have this type, then the drugs are usually more useful, like gabapentin. But these are not 100% effective.

If you have compressions in the lower back, then the Lidoderms should be placed there.

I am seeing in your profile you list high blood pressure. What drugs do you take? If an ACE inhibitor you should try having that switched to another. ACE inhibitors increase bradykinin in the body, which can cause swelling and burning in the skin.
(vasotec, altace, Lisinopril are examples). Some people cannot metabolize away the excess bradykinin, and then they develop all sorts of unpleasant side effects.

Do not discontinue your meds suddenly yourself... discuss any changes with your doctor.