I have a 19 year old small (14.2 hands) QH mix (QH mixed with a pony breed we are thinking) gelding who has had chronic diarrhea since I got him 4 years ago. I originally thought it was the poor quality hay and free feeding of oats in the winter at the place I first boarded him. But it still hasn't cleared up since I have moved him over a year ago to a much better boarding barn. I've had contacted my vet multiple times regarding it (it's a wonder she still answers her phone when she sees it's me!) and she thinks we just need to keep trying different feeds. He's now on grass hay with a small amount of alfalfa hay and we now have him on Nutrena Triumph complete feed 2 scoops 2x a day along with Equitum Digestive in the am. He has a very low fecal egg count and is in good health otherwise (meaning he doesn't act sick). But every weekend when I see him his bum is all caked with dried feces and his tail is all matted with it too. It breaks my heart and really worries me. The vet is thinking as a last resort to try a steroid treatment but I really don't want to go down that road just yet. If anyone might have any suggestions, I would greatly appreciate them!