HEREDITARY MANGE any info would be helpful

Back in the days before Ivomec, we used a mixture of old burnt motor oil, the blacker the better, and sulfur. Mix them together and either dip the dog in it or sponge it on, covering the dog completely except for the eyes. As we understood it, the Red Mange was caused by the Red Mite which burrows just under the skin of the dog. Insects breathe through their exoskeleton, the burnt motor oil coated the exoskeleton of the mite, thus preventing it from breathing and suffocating it. I'm not real sure what the sulfur had to do with it, but that's what all the old timers said to do, so we did it. Never had this not work to get rid of the Red Mange.