u/BlackStorm202

Hi all. I have 5 cats that are all indoor only cats. 4 of them seemingly have itchy skin, all varying in different levels of intensity. We have 1 cat that has severe external allergies but the other 3 just scratch more than usual causing superficial scabs, bald spots and all 3 pooches are thinning of fur. I do not suspect food allergens as I have tried SO MANY different foods over the years and nothing changes. They are currently on Hill's sensitive skin and stomach and have been for months. Is this normal or is there something else I am overlooking since it is multiple cats? No fleas, no ticks, etc.