Experts from a US museum believe it could be one of the oldest examples of advanced surgery. The Museum of Osteology in Oklahoma said the skull is reported to have been that of a man who was injured in battle before undergoing surgery to implant a piece of metal in his head to repair a fracture.
I am not a medical expert but I concur that having molten metal poured over your head and having signs of healing would have very little correlation
Go stay at a Holliday Inn and tell us what you think the following morning.