If I had creepy-crawlies in my hair I'd stand under a hot shower for a few minutes to kill off the little bastards.
Just to digress, I once had a wart on the knuckle of a finger so I tortured the wart by pressing it against a hot radiator, holding ice cubes on it, sticking pins in it, slicing bits off with a razor, squeezing and stretching it, and rubbing all sorts of stuff on it like vinegar, glue and paraffin etc.
It eventually surrendered and vanished after a few weeks and never came back..