Aloha! You're speaking to Dr. Michael Salkin
I'm sorry that your question wasn't answered in a timely manner. I'll address your concerns as you posted them...
Stevia is safe in dogs.
The beef protein is hydrolyzed in that supplement and thus should be appropriate when added to a hydrolyzed protein diet that's balanced and designed to address a food intolerance. If the regular diet isn't hydrolyzed, however, adding the supplement might not be helpful when testing for food intolerance. For instance, Chloe might still be food intolerant to an unusual protein source such as kangaroo or bison in a presumptively hypoallergenic
but not hydrolyzed protein balanced diet whether or not the supplement were added.
I need to know where yeast has been a problem on Chloe - her skin? inside her ears
? Contrary to common belief, diets in dogs have not been found to predispose to yeast in those areas unless a food intolerance exists and causes an allergic dermatitis
which then affects the integrity of the skin and predisposes to secondary bacterial or yeast (Malassezia) infections. I see that cephalexin
- a good choice for bacterial skin infection - and Benadryl - an antihistamine helpful in just ~10% of dogs suffering from allergic dermatitis - were prescribed. Ketoconazole - the drug of choice when addressing Malassezia wasn't prescribed and should have been if a cytology (microscopic exam of a small sample of Chloe's skin surface) revealed abnormal numbers of yeast.
Please respond with additional information and further questions or concerns if you wish.