I Work In A Restaurant And We Have A Rethermalizer.

I work in a restaurant and we have a rethermalizer. I opened the door to proceed in getting my product out and got myself what looks like to me a 2nd degree steam burn on the inside of my left arm wrist almost the width across. I wrapped cold wet towel around it. It looked very red and dark and a few days later the skin peeled off of it. No blister was formed that I had seen. So I started putting neosporin in it and wrapped it. When I put neosporin on it it burned andmy wrist feels like it is aching steadily what shoukd I do?
Thanks
Vanessa