I know this sounds stupid but.....the idea is to trick the brain into feeling something else. When my feet get to tingling so bad, I use Capcasin on them and it helps. The rub doesn't really do anything according to my doc....but the warming of it sends the brain is a new signal the brain then responds to the warming sensation.
Our burning and tingling are false signals from the brain. Sometimes my feet feel or fingers feel like they are in blocks of ice....but they are not really cold. Works for that to....Not all the time but its worth a try. If your condition is really bad...then by all means go for one of the drugs. I have not gotten that far yet.
P.S. WASH HANDS SUPER WELL AFTER USING CAPCASIN!!!!!!! YOU COULD BURN OTHER PARTS OF YOUR BODY ( LIKE EYES ETC.)