My dog has mange, but what kind?

shes 9 weeks old, had this like a week, going to the vet tomorrow, she has a flakey, bald spot on her nose, just one, shes itchy everywhere else but her nose don't itch, its sort of brown looking, it spreads slowly up her nose, its the only bald spot I seen so far, my uncle told me its mange, but what kind does it sound like?