Originally Posted by koobean
it could be a type of mite that's making her fur fall out.. every year in spring our horses get it unless we give them an injection which actually prevents mange. We do that every year in the beginning of spring now and theyre fine. So just ask for a mange injection at a vet (or even some chemists) and she should be fine! Washing her with antifungal shampoo will also help a lot! Hope she gets her fur back soon!
Agree with washing it with an antifungal shampoo - my SWB mare gets it on her (black) legs every year. Maker certain you wash and curry/brush that gets into contact with that area as you don't want to spread it to other parts of the horses body or to other horses.