I have PN from long COVID. EMG shows my nerve damage as minor and thankfully have no real pain just "buzzing" in my lower legs and feet along with "dead big toes". Have given up alcohol and caffeine which has helped. Also have done ARP Wave therapy for 2 months which I think helped - but it is a strong nerve stimulant (amplified TENS) so may not suit those in nerve pain. Taking nerve friendly supplements.

Today I got served a real coffee by accident and within 10 minutes by PN was going for it. High degree of aggravation. Lasted for about 6 hours. For me I think I have proof caffeine is inflammatory and therefore must be avoided.

Individual specific but Caffeine is a no go!