My daughter’s mare gets a flaky rash around her elbows
that seems to be caused by a fungus of some type. Athlete’s foot spray on
the area clears it up. If she doesn’t currently have it, we just make
sure she’s gently scrubbed clean after riding, then apply generic
Listerine type mouthwash to prevent it. Don’t know if it really works,
seems to, and makes me feel like we’re doing something to prevent it. For
any of our horses that is actually sore from the girth I’ve always had
the best luck with using a wool girth cover instead of buying new girths.