Kitty ear confusion. There's this slightly yellow crusty stuff and a few blood spots in and around her ears. It doesn't look dark like ear mites do. Does anyone know what this is, before I start looking for a vet?pic.twitter.com/0rWRSZoqNQ
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Our current foster cat appears has the same. Did you ever find out what it was?
It's ringworm. Take immediate action, get in touch with your vet, it's contagious to humans and other animals, and stays on materials. There are lots of medications, and constant laundry and washing your hands will help as well.