K.P.
It's your child and you want the best for him, why does he smell like dogs, does he cuddle with them or does the care provider not clean her house? I am very anal about cleanliness and besides, you are paying money to provide a safe environment for your child. You wouldn't allow that to happen in your own home, so why allow it someplace else? Besides, it is flu season, and cleaning everything is key to maintaining a healthy environment. I would definitely talk to her and voice my concerns.