Originally Posted by GreyRay
She probably had an unbearable itch! Horses will rub themselves raw scraching an itch. What caused the itch... I don't know...
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A horse at my barn literally just went through this. She rubbed all of the skin on her bottom jaw OFF. Its really gruesome. The vet concluded she had a tick and it was bothering her so much she rubbed her face raw. So sad.
Maybe she's anxious? Or itchy?