This may sound a bit strange, or a bit obvious, but You probably need to look into the matter a bit more closely, so to speak.
Smell your hound, they may be confused at the reversal of roles, but it will be worth it. Smell your hound all over until you find if where the smell is coming from. If it is in one of the folds, mentioned by Mikey, then yes find a dermatologist, however if it seems to be coming from their ears, which is what happens with Buckley, then you may be able to bathe her a bit less often, and just clean the ears.
If it is the ears, cotton balls are the best way to get at the inside of the ears, using either a commercial product, I don't know of any because we've always used the homemade vinegar/water mixture.