Prescription Strength Clinical.

"If moisture production is a big problem for you and you feel like that's one of the strong drivers of your foot odor, then I recommend incorporating an aluminum-based antiperspirant into your foot care routine. Aluminum works incredibly well to reduce sweating. One of the antiperspirants I recommend the most commonly for feet is the Certain Dri Prescription Strength Clinical. The reason I like this one so much is of course it has the aluminum to reduce the sweating but it comes as a little rollerball so it's just very easy to apply to the feet. The best way to apply aluminum-based products to fight sweating is to do it at night when you're sweating the least, so before bed put on your Certain Dri, roll it all over your feet and between your toes, and then sleep in it, and do that regularly and you will notice the moisture production from your feet goes down."

"One of the most recommended products by dermatologists is Certain Dry. You can find this in the drugstore or on Amazon and it is very affordable. Their single most effective product is Certain Dry Prescription Strength Clinical, which has 12 aluminum chloride, and it has a very simple ingredients list—this is just a pure antiperspirant—and it is only about six dollars on Amazon."