Itchy Rash/Scabby Areas; What is it?
History for bay mare: her tail has been itchy and the hair always seems to be rubbed off for about 3 years now. Don't judge me yet.. Since then, I have tried multiple different treatment options; different dewormers (as people assumed pinworms), the Listerine treatment, butt cream, MGT spray, iodine scrubs, you name it. It seems to go away, but every summer, surprise! it's back. At this point, I'm assuming it's some kind of fungal disease and I'm trying a diluted Betadine bath daily with an antifungal topical spray. The other areas as shown in photos have only popped up this year. I'm exhausted of trying to get rid of this thing that seems to never go away.. Are the body areas something else? People assume rainrot, but the hair doesn't come out like rainrot usually does. Is it fungal too; if so what should I do or is what I'm doing the best option?
History for red roan gelding: never had symptoms of anything until a few weeks ago. That's when the ear bleeding and scabbing started to show. I assumed it was from the sun since the two horses were in a small stand alone pasture with little shade (thank goodness I've moved from that situation..) but now he has scabbing all over his rump and his ears just look swollen and it's all very painful for him. Is it also a fungal thing he got from my mare? They've been together going on 3 years now.. I started by putting ointment on it and now I've put Nitrofurazone on both horses scars and cortizone on their tails for the itchiness.
Please, please help me. No negative comments please, I really have been trying my best. I mentioned it to several vets, some ambulatory and some via photos, and I have tried their suggestions. Anything that might work to make them feel better. As mentioned, some vets thought it was pinworms, but dewormers haven't improved the issue. Other vets believe it's a fungal issue and have suggested the routine I'm on, but I feel like I need more opinions as it's starting to get more and more painful for them and it's not improving.
Side note: I live in the south and they stay outside (with shade now), but it still is high 90s almost everyday.