I live in tropical North Queensland, Australia, so we see a pretty decent wet season. During this wet season my now 13 year old Thoroughbred would suffer terrible rain scald/ rain rot. His face and beautiful bum would go bald and he would be covered in ugly scabs. We tried to rug him, but because of our humid temperatures it usually made matters worse and irritated him. We also tried to stable him, but being stabled for most of the day made him terribly depressed. I needed a solution for his rain scald/ rain rot that would not hinder him. So I hopped on the net and did some research and I found a recipe for a spray that worked wonders!
Ok so here is is; mix 50 part water and 50 parts Listerine mouthwash (yup mouth wash) into a spray bottle. Spray of the affected areas 3 times a day. It works best if you bush the horse first or remove any loose scabs. This is the best treatment for rain scald that I have EVER used. And I tried everything from rugs, to ointments to stabling him. This works wonders. I saw results in 3 days. He had grown back his beautiful coat and it had its beautiful shine. I now spray him with it every now and then just for safe measures and to get a lovely shine out of him.
How it works. Listerine kills the bacteria in the horses coat that causes rain scald/ rain rot. Just like it kills the bacteria inside our mouths. It is perfectly safe and my horse has had no irritation from it at all, because the 50 parts water weakens it just enough not to irritate, but still keep the bacteria fighting effective!
This is a really effective spray and I highly recommend that every grooming box has one. Not only does it keep your horse rain scald. Rain rot free and give him a healthy shine, but it also keeps him smelling minty fresh ;)