Last night while cleaning up a bit of angle iron on the belt sander I grabbed a section of the angle that was still very hot. Although I dropped the angle and immediately plunged my hand into some water I could tell from the extent of the pain and the burnt skin smell, that I was about to get a big burn blister on the top of my middle finger.
I then remembered what SWMBO had told me about cooling a burn with iced water for as long as you can stand it. So I went the the beer fridge and grabbed a handful of ice dust from the freezer and made a slushy ice ball and sqeezed it with the other hand into a sort of an ice cast around my burnt finger. When this cast had almost melted away I made another cast and then another 2. By then my finger was quite numb from the cold and I could feel no burn pain. All up my finger was under ice for about 20 minutes. When it warmed up there was a bit of pain for a while, the burned skin was smooth and looked on the yellow side but the burn pain subsided significantly in about a hour.
I am amazed how it did not form a blister and am now 24 hours later typing with this smooth skin slightly yellow finger.