My hubby's gelding didn't shed out at the same time my gelding did. He then started losing hair on his butt and chest - not shedding - no hair! I took him to the vet and he said it was garden variety fungus amongus of southeast Texas. He suggested Captan powder on the fungus and washing him with a medicated shampoo.
I am putting the powder on and he has been washed in the shampoo. His hair started coming back (it has been exactly one week) but today I noticed this on his left side
I called his vet and was directed to the younger vet as it was after hours. I described the skin and he said it could be trying to slough off. I am hauling him to the vet in the morning. I don't know if it is allergies, a blood issue or what but I am going to find out.
Last year he had a bad case of worms (he was wormed on a regular basis) and it took awhile to get them under control. He normally has very metallic hair and some of his hair is shiny and some is not. He did have a full blood work up last year and was fine.
Has anyone ever seen this or had it happen to their horse? He is a 10 year old QH, is on Safe Choice twice a day and is pastured with my other gelding.