What test did you use?
Because even if I was to believe it was accurate (I don’t) it would be impossible to avoid all those ingredients in any commercial dog food.
The prescription food goes through a process so the dog does not react to the allergens.
Do you mean food sensitivities as opposed to allergies?
Because food allergies are rare and food sensitivities tend to fluctuate.
If his problems continue I would go to a veterinary dermatologist for testing/diagnosis/treatment. I think you would get much better results.
