My Dogs Ear Stinks. If the itch or smell is what tipped you off, you probably noticed a stale, ripe smell which is quite. We have a product called ecoears, which is made precisely for this purpose.
This build up can cause your dog’s ears to smell foul, but not rancid. Causes why does my dog stink. Your dog’s ears are itchy and smelly because she has an ear infection.