I don't have an answer for you, but the little yorkie that I had gotten from rescue had the EXACT same thing you are describing. I asked the rescue, my vet and another lady that has a lot of experience with yorkies, but none of them had an answer. I would really like to know what it is and what causes it.
I'm posting a picture of the dog that I am referring to... if you look closely, you can see it around her eyes. She also had a couple of places on her nose, but you can't really tell from this picture.
Anyone know?
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