Wonder if anyone can help me. Today I went to vault onto my mare and as I used part of her mane to pull myself on it all came out in my hand! :( now its only happening along her withers the hair is jus falling out. The skin looks like she has very bad dandruff! Theres flakes of skin everywhere. Could it be sweet itch? I've never seen her itch it but she always shakes her head when I brush her mane.