Get some black tea from your local grocery store. Take 5 bags and boil pour in a basin a ND soak your feet for ten to 15 min for 5 days. This will kill the bacteria . Also get a empty spray bottle mix some of the tea up and when you take your shoes off spray the inside. Thus will keep your shoes from smelling. Oh when you make your mixture you can put some water in the basin to help cover your feet for soaking but be sure not to dilute to much.