I have a 7 year old golden retriever that has always had yeast infections in her ears and such. Recently after treating her ears again, I realized that her undercarriage was showing the same symptoms. Now, she has lost all her hair underneath, on her neck, and is slowly losing her hair up the sides. Her skin is black where the hair is gone. She seems to be losing weight, and today went into a neighbor's yard which she has never done, and then could not figure out how to get back. She seemed to not recognize that we were calling her.