My yorkie, Hobbs, had really dry, itchy, flaky skin. We changed his food from Pro Plan to Chicken Soup and we tried all different shampoos and he was STILL itching!

So, someone on here suggested Missing Link supplement. We tried it and his dry skin cleared up right away! We took him off it for a couple of weeks when we got our new puppy bc it was messing up her tummy, and his dry skin came right back. That is how we know for sure that this stuff works like a charm! AND my two LOVE the taste. I sprinkle it on their food and they lick the remnants from the bottom of the bowl
Here is a link that tells more about it. It is all natural.
http://www.designinghealth.com/produ...ucts_main.html
You have to keep it in the refridgerator and it goes bad in 3 months. This is the only place I've found where you can order a 1/2 lb (8 oz.) bag, which you should be able to use in 3 months. All the other websites I've seen only sell 1 lb. and 5 lbs. bags. If you got these, you would end up throwing a lot of it away after 3 months. Here is the link:
http://www.designinghealth.com/cgi-b...7&catalog=Dogs
Hope it works as well for you as it did for my yorkie!