DERMA-IONX is helpful for many skin conditions. It is an oral homeopathic product which stimulates the enzyme systems in the body that aids the skin and helps with assimilation of nutritional components in diet and supplements. What sets it apart from most homeopathics is that it is in an oligotherapeutic mineral base which has had a charge added to it.
Initially I would give a half dose of DERMA-IONX on the breakfast and supper food. After there are signs of improvement you can give a whole dose once a day. I would also give Probiotics to aid the immune system. OMEGA 3,6,9 is also helpful in soothing irritated skin. What do you feed your dog? I would suggest a grain free diet that uses fish or turkey as the protein source if your dog is not allergic to it. According to Chinese food therapy when the body is very warm on would feed a cooling diet. Beef is neutral; lamb, venison, and chicken are warming.
You might also want to bathe your dog with DEFENDEX. It contains essential oils that are very helpful. Please keep us updated so we can help guide you along the way.