Golden Horseshoe Iodine Shampoo. A high quality Medicated Equine shampoo that contains Iodine. Iodine is known for its anti-bacterial and anti-fungal properties. Regular use will help to promote healthy skin. Iodine Shampoo is often used for prophylactic and therapeutic control of fungus infections, pyogenic infections, specific and non-specific skin disorders, girth itch, fungus, muck itch and sweet itch.