Does she have fleas? How old is she? I would take her in to the vet if she just started to itch.
Pnut is pretty itchy just because of the summer. I give him K-9 Advantix once a month, I also give him Coconut oil. I bath him once a week too. When his skin is really irritated I spray his Gentocin spray on him.
I would talk to you vet first, Yorkie's are so small it's not that easy to just put human grade medicine on them.
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