I have littermates Maggie and Jasmine. Maggie and her sisters contracted Demodectic Mange from the mother, but Jasmine never got it? (four pups in the litter) Maggie went for the dips and it was clearing it up but not as fast as what the vet would have liked, so he did give her the shot for the other mange. If I remember right, she had one more dip after the shot and had a good scrape. Never came back and her hair grew back beatifully. She is also a lemon so you so the red, balding skin easier than on a tri.