I found this site in regards to the itching, scratching and found it quite interesting to try, sami has always itched no matter what I have feed him Other than the boiled chicken I have been giving him.
there is a Customized Solution button on the site and you are asked about 4 questions in regards to your dogs name problem etc... and then a suggestion is made.
Now I have not purchased anything as of yet, but after reading all the information you are offered a free sample kit of shampoos, vitamins etc...
So I thought maybe your yorkies are having simular problems I recently requested the sample kit and thought I would pass this on to you or maybe you have already known about it or maybe can recommend another site to me in regards to sami's problem I have tried just about everything and thought I would try this!
DINOVITE Stops Excessive Itching!