Also, no oatmeal shampoo for your Mom's dog.
How Often Should You Bathe Your Pet? Also avoid shampoos that include oatmeal. Oatmeal has a great reputation as a soothing ingredient, but in animals that have a problem with grain (which is 80 percent plus of allergic dogs!) they are likely to have problems with oatmeal shampoos. Grain-based shampoos may also provide a carbohydrate food source for unwanted yeast and bacteria. The only pets that truly benefit from oatmeal shampoos are those that have poison oak or poison ivy reactions.