Hey GG - so not better since last conversation.
Go with the Hills food as recommended. Trust me please as all dogs that had intestinal problems did fine on this food. Once regulated, I went back to my regular feeding of higher quality by mixing and then fully on regular. Others may disagree but for my fosters that had problems (and I have had many) this worked fine.
As for the medical - I can't help. Best of luck to you on this - you certainly do not need this of all things.