I acutally just suffered some pretty awful burns last weekend. I put my hand down on a searing hot grill. (Don't ask - long story - I knew full well it was hot, but in the moment, there were no other options - we were preventing another boat from hitting us!)
Anyway, I happened to have a woman on my boat with me who suffered burns over more than 50% of her body a few years ago in a terrible accident. While I was crying in pain, she kept insisting we put honey on it.
Ordinary honey. I have yet to research it (just now able to type without shooting pain!) but let me tell you, as nuts as I thought she was, I believed her, and boy did it work.
She insisted it would help with the blistering. And it DID. You have to put it on and let it sting. After that, it feels better.
The burns on my fingers never even blistered, even though they were incredibly painful... one giant burn on my palm DID blister, but I think that's because it was a 2nd degree burn that we probably should have gone to the clinic for.

Oh well, live and learn.
But it did blister gently and relatively painlessly, just drained when I was mopping the other day, and now it's turning to scar tissue.
Just my 2 cents!
Julia