Rain rot shares comes from a bacterium called dermatophilus congolensis. This bacteria is in a family called actinomycetes, these little things act like both bacteria and fungi. Horses naturally have these organisms on their skin; they lay dormant until rainy, wet conditions cause it to flare-up.
We LOVE it!! It cleared up Gidget’s rain rot super fast! We’ve been using the powder as a preventative on Gidget’s back after rides and it has really kept the rain rot at bay. So it’s worth the purchase!LeeAnn Stone Johnson, Facebook Review