In early August, a weird crack appeared in Speedy's heel. I cleaned it thoroughly and was relieved to discover that it didn't both him at all. He was sound, and I could poke and prod at the wound without Speedy even noticing.
He wasn't overly freaked out about it, but he could see that I wanted/needed SOMETHING else to try. He even said that. Do you want something else? YES. Give me something that looks medicinal, and give it to me quickly!
I quit wrapping Speedy's foot (thank goodness as hoof wrappings are a serious pain in the butt), and per Dr. Tolley's recommendation, I fashioned a sun shade/fly swatter out of a sock and now keep that on his foot. You can sort of see the edges of it in the top photo.
I can't say the Genta Spray has worked miracles, but the crack does look better. It's not getting bigger, and Speedy is sound as can be. However ...
Who knows? Fewer daylight hours, less flies, and cooler weather might be all it needs. I'll be watching it to see!