I hope Uni gets some relief soon
I know how frustrating allergies are. Jada can't eat much of anything without itching. So far the only kibble I have had luck with is the Natural Balance LID Sweet Potato and Venison. I know any type chicken makes her itch as do any grains and fish gives her loose bowels.
It might take a shot to get Uni some immediate relief, I know that during two of Jada's worst episodes a shot was all that worked. I also keep a prescription of hydroxyzine on hand if she starts scratching a lot. It seems to keep the itching from getting out of control, but I only use it if she has been itchy for a day or so.
I hope the vet can do something to give her relief tomorrow.