Equine America Fungatrol Shampoo is specially formulated to protect the skin from external influences that cause bald patches and scabs. Fungatrol shampoo thoroughly cleanses your horse and ensures healthy skin. The shampoo is suitable for wet, muddy seasons, but can also be used daily. Washing your horse with water alone can wash away the protective oils from the skin. Your horse will then be more susceptible to bald patches or scabs. For best results, leave on for 20 minutes and then rinse.