Contact your vet again. Also, while some may disagree this makes a difference, invest in good quality GRAIN FREE dog food. Dogs naturally do not process grains well and they are used as "fillers" in most commercial dog foods. Most of the grain free foods will cost you more, but in the end, it's worth it to have a happy, furry pooch! One other thing I did was get some quality dog shampoo/conditioner. There's a GNC brand sold at Petsmart that helps with bacteria and fungus in your dog's coat. It costs $30 a bottle, but I've noticed a difference.