My GSD is having some pretty bad problems with allergies. Her symptoms are near-constant ear infections, chewing her feet, and excessive licking on her belly. I have tried many things to help her, but after running out of options started her on Apoquel a couple of weeks ago, and it's helping. But I have concerns about her being on this long term, and I wonder if finding the source of her allergy would be beneficial. My vet thinks that allergy testing is expensive and often inconclusive and so doesn't think I should do it. Would love to get some opinions here from anyone who has gone through it with their dog.