I know you said you tried eveything for feet but I will throw these out for you, they helped me. Benzoyl peroxide Acne cream over the counter type. Thin layer & try first at home bc it can make your feet sweat more bc it is a cream. At night bc the cream is so drying, my feet feel dry for once in slippers. Boric acid only for the shoes themselves. Zeasorb powder I heard is great but haven't needed to try yet. Less protein in diet helps cut back foot odor for me as well. Good luck, I hope something works soon!!