My 1 year old chihuahua has bad breath. He has had it since he was a puppy. I brush his teeth and his diet is the same, plus I also give him the breath bones which he really doesn't like. His breath smells like a garbage can (no he is to small to get into the trash). I also notice his breath smells worse when he is excited or upset. What could it be and what can I do about it.
There are many different treats and oral washes available for canines with bad breath that are worth try. Vetcare