We have a vet appt Oct 8th, I just want to see if anyone has pointers besides prescription medication.

He was recently sick, seemingly dog food allergy? We just finished switching him to Nutrish which is all natural, he stopped scratching and licking. But his fur still looks horrible, it is short and opaque, he looks nothing like the GSD he was a few months ago and it breaks my heart. FYI, we already use an all natural shampoo. Well, does anyone have any other suggestions??

Thank you so much!