The baths are necessary but they are potent. After about 3 I would have the vet do a scrape to see if she still has mites and anymore dips are needed. Chachi had it and after the 5th dip he started vomiting and diahrea so I decided he wasnt going to have anymore unless absolutely necessary so I had the vet do a scrape and he was mite free so he didnt have any more |