Cookie had a relapse. I don’t know what caused it, I am at a total loss. She had a bladder/kidney infection at the same time as the renewed itching. She was so listless I though she was dying. She has come out of it after antibiotics. I changed her food again this time to venison and sweet potato and she is doing better again. We are going to be away for a week and when we come back my brother (the vet) wants me to take her to a specialist again. We’ll see. thanks for asking.
She needs immune support for whatever reason, imho. Get her right back on the probiotic as soon as the course of antibiotics is done, she needs to reestablish beneficial flora in her gut that is being killed off. No reason to discontinue the Omegas either, not that I can see, but your veterinarian brother would be the expert on the matter.