My horse had a terrible case of rain rot last year, and I just found two patches of it yesterday, even though it's under his blanket.
I already feed Big Sky Mineral and Command FT probiotic.
I am not educated enough about this type of thing, and it's clear that he needs an extra Vit A, but I don't want to overdose anything. When I look for Vit A online, it's in with other supplements.
Any thoughts/suggestions would be appreciated.