Pick up some of The Blissful Dog Simply Clean Ear Cleaner for Cats. Have you ever been cuddling your cat, enjoying a sweet moment and smelled something...funky? You looked around, checked your shoes, your cat's feet and then you realize it is their ears! Dirty cat ears can have a yeasty, almost sickly sweet smell. Dirty cat ears can also warrant a trip to the vet, in the case of infections or severe buildups.