Well good to hear he is ok
as for the brother, sounds like alergies to me. Check for fleas. Are they indoor beasties? You may have to bath him once a month, ad olive oil to the food, make sure there is no rice in food. If that doesn't work, you may have to give small doses of prednisone. As you probably can tell....been there done that. The prednisone was the answer for mine. 2 mg. every other day then it went down to every 3-4 days. Kept him comfy and he didn't pluck himself bald.
I love pussy talk