I have a cat who gas eosinophilic granuloma complex. Long story short, she's allergic to everything and is constantly going to the vet for antibiotic shots and treatments. I never used it, to be honest I was avoiding using it because it seemed daunting.
Finally, I realized I had to use the insurance I was paying for, and it's amazing! I am getting to much money back, and now my kitten can try to get better!