Best of luck Alex. I know exactly how you feel, I had the same on my hand a couple of months ago. A little explosion from one of my nitro fuel bottles caught my right hand. Had to be taken to the burns unit in Chelsea for treatment. The pain is intense, but does get better I promise.
Worst part was them pulling the skin off my fingers like banana skins a few hours after the event without any anaesthetic.
Best thing is to follow exactly what they tell you at the burns unit, go back to have your dressings changed on time as per their recommendations and keep it clean. You will be amazed how quick it actually heals. I only have slight scarring in the worst areas and the pigment coming back slowly.
Happy healing and get some rest.