Chiming in with my chronic scratches boy. He basically has scratches from his coronet band to mid fetlock all the way around in both hind feet. He doesn’t have any white on his legs.
With aggressive treatment I can get the scratches to recede a fair bit but not clear up completely.
We’ve been through more topical treatments than I care to type out and a 30 day course of SMZ tabs.
Nutritionally, he gets a Zn/Cu supp 960/320 mg, 30 g biotin and 2 oz OE3 oil on top of his 7 lbs TCS Gold. I gave him 8000 IUs of Vit E (Santa Cruz) daily for about 6 months and didn’t notice a change so have dropped it. I’ve pulled the vast majority of his legumes for the past 6 weeks or so, no change. I’d have to switch feeds to pull all legumes.
Pastured on good grass at least 8 hrs daily year round. For the past 6 months or so I’ve kept him in dry lot overnight and turned out to grass after dew dried. I don’t have any mud to speak of here (FL); soil is quite sandy. Property slopes well for drainage too. So I doubt environmental moisture is a big player.
I tried putting Shoo Fly Leggings on him. Horse lost his mind running backwards and spinning. I think they might have hurt him to wear. He’s pretty sensitive about things touching the affected areas.
Vet is coming tomorrow to do blood work and a scraping / culture. Hopefully we’ll get something going here bc I’m very tired of doctoring on this horse’s legs. Horse is very tired of it too.