PN is a real Bear to have to fight. Mine from chemo (Lupron) which they are stopping the use of because better and less harmful drugs are being used. Also before the Chemo, and with first Prostate biopsy, I was given the Antibiotic CIPRO and that started the burning toes and folks should know that certain antibiotics directly cause PN. B-vitamins are helpful if you get the right kind. Took B-6 thinking it would help but then learned that the B-6 had to be in the P-5-P form and that helped. For fast relief from burning feet (and/or) hands I use BioFreeze gel and apply it topically with a little rubbing it in. The very best and most dependable relief to me is smoke the grass! An almost instant relief (in seconds) comes as blood vessels open up. Best weed is Indica as it tends to relax the body while Sativa hypes you up which is not the desired effect. Also getting the most Nitric Oxide in your body is most important. Inhale deep thru the nose and exhale thru the nose (try humming on the exhale). The N/O is is absorbed in the Palate and Nasal cavities. Not the Lungs. The humming greatly (by 10X+) increases the N/O you extract from the air. If done regularly, spinning on a stationary Bike will help. Your thighs hold a huge amount of blood and to spin fairly fast for a few minutes several times a week will also really help with the PN mainly in your feet.