I have searched all over the forum, and have not found anything about this particular issue.
My horse, Roger has recently (the last few days) been loosing hair in certain parts of his body. His winter coat is shedding as normal, but there is no summer coat underneath. It is not scabby, and does not appear to be bothering him.
A few other horses from my barn have developed this problem, one of which has become entirely bald. The vet came out a few weeks ago (when they first developed it) and claimed it was probably some form of parasite infection. Such as mites.
I called him today, due to my increasing concern. He now thinks it could be a "rare shedding condition".
I gave him Ivermectin and rinsed iodine over the most effected area. This was previously recommenced by the vet when he thought it was parasitic.
I was wondering if anyone has ever come across this strange issue before. It is obviously contagious and rapidly spreading. I appreciate any input/advice you guys have!
I attached a picture below. This is a close up behind his ear. An area roughly 6x6 inches.