My dog is about 15 years old. He normally gets very dry in the fall and winter but this year it has been especially bad. His skin is flaky and he has been itching so much that some of his exposed skin has turned black. He is half cocker spaniel and half golden retriever. I have given him a bath once or twice a week with Sulfodene and it seems to help for a day or two at most. When I bathed him I did notice 1 or 2 fleas but that's all I could ever find. What could this be? I have given him Brewer's Yeast pills to try to help with the skin condition but the success has been very limited. Is there anything else, short of taking him to a vet, that I can try?

