Jay, my arm pain feels like burning neuralgia. I've tried pain killers, tens machine and cold therapy but nothing helped to calm it down. Where I live the options are limited wether on the health service or alternative. I've been tempted to try a lower dose of Pregabalin to see if the fog improves. It's difficult because as much as I hate such a mental blindspot the constant severe burning made me miserable. I use gentle stretches for wrist and fingers as well as task switching.
Hmm... I'm not sure how I'd cope with burning... (
My jab side effects have been a burnt tongue tip feeling for days, but I doubt that's comparable, and burning skin in alternating areas for a few hours to days. Both allow distraction, which I very much doubt yours does.)
Before going into it deeper: You haven't been able to get it checked neurologically, I assume? Causalgia / CPRS'd seem to be "a name". I wouldn't think "paraesthesia" fits, cos it's too much pain for that.
Does "options are limited" mean nerve & pain supps and anti-inflammatory spices are too expensive too - have you tried some? enough?
The burning making you miserable again brings up the question of pain management: Anything you could increase there? Angles might be
1) learning to suffer without (inner!) complaint like sunkacola's dogs,
2) going "into" the pain and trying to re-interpret some of it ("warmth"),
3) mindfulness, relaxation, body scans,
4) books or videos about all this, like Kabat-Zinn.
What works best is very personal, may vary, best to have all in our tooboxes.
Especially if options are limited I'd always try youtube.
Testing it myself, looking for "burning arms" doesn't help, but causalgia or CPRS treatments does - or would if that's a side diagnosis that you feel is fitting....
By that I find "Treating CRPS: What's in My Toolbag? - RSDSA" which points to ketamine and LDN, the latter being one which some people have success with for fibro, ever tried that? How easy would that be to get? He rattles thru a whole load of very familiar sounding meds which reminds me if you've tried gabapentin instead of pregabalin: Altho pregabalin was developed because of the tough side effects of gabapentin, some people do better on gabapentin. I'd give a med 2-3 months at most (now), if that's possible.