So, this is for my story so don’t be alarmed.
I forgot what it was (a fanfic maybe?) but a character had a major blood wound. To fix it up someone had to give him a washcloth to bite down on and restrain his movements as another character set up a fire and grabbed a metal pole thing. They then put the pole over the heat and held it using a those oven mitts and let it heat up a bit. Then, they proceeded to touch it over his wound and it hurt like hell but somehow helped heal his wound at the same time.
How does that help and does that really work or does it only help in novels and TV shows?