Joe--I would not have her dipped at all, if it's not too late. Mitaban is really toxic. I would get a recommendation from a coworker, neighbor or relative for a new vet and make an appointment. Kadie will be fine if it takes a couple days to get her in. The mange won't consume her or anything. Both types of mange are curable for the most part, though in some cases, they are managed throughout the dog's life with meds. That said, I'm not sure where Kadie had patches (of mange), but it doesn't sound like it was generalized (she would have looked pretty bad), which is good news. Tae had it last summer and we first tried to boost the immune system. That didn't work, so my vet put her in ivermectin for about 8 weeks. I didn't like it, but it did the job.
I'm not sure where your vet gets his info about immune systems and white Boxers. That's just absurd. Definitely find a new vet!
Keep us posted.
Becky
I just noted your post re Wysong. I tried to find a list of ingredients on line, but was unsuccessful. The website, though, indicates it's a holistic food (good!) and they use organic products (good again!), and it's meant to boost a dog's immune system. This is all positive, though I'd be curious to see the ingredients...