The best dog shampoo for odor is like the dog version of the best deodorant spray for you. You never want to have a stinky dog especially if you have indoor dogs loitering around and sleeping on your sofas. Do not even think about spraying perfume on dogs, though. Using perfume on dogs is highly deadly for them. The best way to rid of odor is to make sure that the dog is eating the right kind of diet for him. Dogs don’t sweat, so whatever they put in their stomach affects the overall scent of its body. If you feel like there is no change with the scent, no matter how hard you try with the dog’s current shampoo, it’s time to switch brands. Ask your local vet. Or ask around the Internet for the public’s opinions on the wide range of choices that are being sold in the market of dog shampoos.