I use De Flea Shampoo but that's because we're in FL. In researching shampoos for my itchy girl, there are two or three allergy- type shampoos that can be used daily if necessary. It's important to look at the descriptions of shampoos (use a search engine for "dog shampoo") and read and read and pretty soon you will catch on to the lingo and you will be able to pick out one that should work for you. I would go with rinsing whenever possible and maybe use a very, very dilute shampoo once a week or so, just enough to break the surface tension of any residual soil so it will rinse off. And remember, just when you think you have rinsed enough, do it again. Good luck.