I have a gelding who in the last few days developed two hairless patches about the size of a quarter on his chest. I washed them with an anti-fungal shampoo that has never let me down before. A couple days later (the next time I saw my horse) I noticed that one of the patches had become a red sore, and that the other one was quickly following suit. I was told by a friend that it could be something called dry-landers, which her horses have had. However, upon looking for information via google, I came up with nothing. Does someone else have any ideas (sorry, no pics) about what it could be? Alternatively, do I have the name of that possible condition wrong? Please help; I would like to know what I might be dealing with before I call in my vet.