My german shepherd has a terrible time with environmental allergies and chews herself raw starting in the spring through til the end of summer. I bathe her at least once a week with hot spot shampoo but find giving her an apple cider vinegar in between is very helpful. I add 2 cups to apple cider vinegar to my bathtub filled with about 4 inches of warm water. Her coat looks amazing after the bath. Smell gone after she dries off completely. Hope this helps.