A common household fix for back pain.
When my mother was little my grandmother and the same for my father, would take a regular drinking glass, heat it with a match, then slam it down on the part of the back that was in pain. This was said to suck the pain out of the area for immediate relief. This is something I had never heard of until discussing folklore with both of my parents in which they both agreed that this is what their mothers would do because someone somewhere had told them it would work and take away back pain. I’m sure this method could be used other places than just the back but this is where it was usually used.