I don't live in LA, but I'm close enough to claim it! I'm right on the MS/LA line and do the majority of my shopping in LA.
I normally do brush her daily, I have noticed that it typically keeps it at bay. With all the nastiness and rain they stayed holed up in the woods and wouldn't come down for nothing. A few of the days when the weather eased up I walked out to them with a curry and fluffed their hair out, but at that time the rain rot wasn't presenting itself like it is now.
I feel like a horrible horse owner, but in all my years of owning horses I have never seen something like this. Honestly, she's the first I've owned that I have to stay on top of so that it doesn't flair up. If I had known about the vitamin A I would have already had her on it! I do have her on a good feed...Strategy Healthy Edge with Optizyme added as well. She's on 24/7 turnout...free choice hay and access to rye grass. When I head to town later I'll be picking up some vitamin A, hopefully Tractor Supply will have it.
Seeing as how it's the weekend now, my regular vet will charge me out the a$$ for a visit, but I have a vet friend that I can call to give her a look. She's small animal, but owns horses and has no problem handling stuff like this and giving advice. I will say, aside from the enormous hair loss, her skin doesn't look oozy like it did yesterday. I curried her really well and got out the majority of the scabs and then rubbed MTG on the exposed skin. Her skin is a healthy looking dry, not flaky, so that makes me hopeful that there isn't an infection.
Thanks everyone, like I said, I had no clue about the vitamin A aspect of it. I have already passed that on to some horse friends (who had never heard it either). Maybe now I can get her healed and cleared up permanently.
Oh, and flyinghighleo....thanks for the pic, it gives me hope that she'll be beautiful again. I feel horrible for my girl, she normally has a great coat.