My 2 year old horse is loosing hair on her left shoulder. Its not like shedding though, all the hair is off in that one spot. Its a zig-zag pattern going down her shoulder, looks like someone painted it on her from far away, since shes a dark horse.:lol: Dandruf gets everywhere when you rub it. You can also pull the hair out, kind of like you can rain rot, but I know its not rain rot, I brush her almost every day. I can't figure out what it is, so I was wondering if anyone has ever seen this before. What is it? What can I do about it? Thanks!