What has helped our dogs often is feeding them raw green tripe for a few days and after that once in a while to keep their gut healthy. It seems to work as medicine.
I also would look at other foods. I am not a fan of Purina.
To know if you are doing things right, you should be willing to trade places with your dog.
Last edited by wolfy dog; 01-15-2013 at 05:01 PM.