I have used yogurt, plain about 1tablespoon a day and put straight aloe vera from plant leaf on the spots. This has helped with skin issues. I also only bath dogs with this issue about 1 time every two months. If needed for dirt more often, I wash with water only. Also make sure your treats are raw foods too, like green beans or carrots, as some dog treats have wheat which is an allergen to dogs. Hope this helps. Nothing worse than alergy issues. I did have one dog that ended up having to have steroid shots his whole life which shortened it by 2-3 years, but he was happy and healthy the years he was with us.