I was brushing her the other day and I lifted up her tail to check underneath - She has a bit of skin in the crease where her dock meets her butt where the top layer of the skin (the black part) is peeling/sloughing off - Only tiny, like smaller than my pinky fingernail - But it made me wonder.
Could she have a skin condition that is making her so itchy? I also led her through a gate and brushed agains her butt as she walked past - She nearly squished me against the gate trying to get an itch on her butt (needless to say she learnt better). I have just never encountered such an itchy horse!
Apart from that one spot her skin seems normal - No scabs or flaking or anything. She does have a lot of dandruff in her tail.
When we get another warm day I might wash her with some dry skin shampoo we have and see how she goes.
But any opinions on what could make her so itchy?