I have a Great Pyrenees/Golden Retreiver mix.This is my first long haired dog.I read that dogs like these tend to have skin irritations and shouldn't be bathed often with regular dog shampoo. Snowball tends to go outside and likes to roll around in the dirt. I clean her up as much as possible,but she still looks dirty to me.I want to try dry shampoo but I wanted to know if it will clean and not hurt my dog.