I have a year old female donkey who is after developing a bald patch (skin isn't broken) on her shoulder. She has a some dandruff around her withers. I have checked for lice and can't see any. She is out with my horse and the horse definitely has no lice.
I bought a spray for lice/ticks/mites but I haven't used it yet as she still has her rug on so I don't want to be leaving her with damp hair under the rug. Is it possible that it is just the dandruff causing it or could it be something else?