Rain rot is a common skin condition in horses. In many cases it can resolve on its own, but it should always be monitored closely to prevent recurrence or complications. After a wet spring with frequent rain or wet snow, you may notice your horse’s coat is not thriving as expected. The skin may appear dry, with loose, flaky hair — or worse, patches of hair may come away during grooming, leaving crusty areas beneath. These are classic signs of dermatophilosis , commonly known