You might want to look at some of our products to help heal the skin. Derma-IonX which is an oral homeopathic product stimulates the enzyme systems in the body which reduces itching and inflammation, promotes healing of the skin and helps with assimilation of nutritional components in diet and supplements. The supplements I use along with it include Canine probiotics, MSM, vitamin C, and Omega 3,6,9. Together with Derma-IonX it produces a synergistic effect for a faster response. I would also suggest that you give your dog only filtered water for drinking and bathing if your water contains chlorine or fluoride. You can try the carrots and hamburger but only add on of them into the diet per week so that you can tell if one of them worsens the situation.
Defendex shampoo which is nontoxic washes away debris and soothes the skin. It contains oils and homeopathics. Using these products is an effective way of improving skin health.
Another thing you can try is to have a veterinary chiropractor check her over. Sometimes spinal misalignment influences allergies.
Please feel free to contact us again if you have any other questions.