My 10 week old puppy has mange...what do i do?

when my uncle bob's hunting dogs got the mange,and even his puppies he got and old tub,and put used motor oil in it and rubbed it all over his dogs and puppies.it sounds crazy but it really works. one good rubdown a day until the mange is gone,then rub vitamin -e oil into dog's skin to help with healing.i keep vitamin e in capsule form.all you have to do is open one end of the capsule and apply to the skin.works good on humans too! also try to give your dog cod liver oil. it is good for them and makes their coat healthy and shiney!hope this helps.god bless