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One of the most important things you can do to keep your feet from sweating is to wash them thoroughly every day. This will help to minimize any bacteria or fungi that might be living in the damp environment of your socks. Use antibacterial soap each time you wash your feet.  Even if you don’t shower every day, you should wash your feet with soap and warm water on a daily basis. Bacteria and fungi thrive in warm, damp settings, so inside your socks and around your feet are perfect places for them to grow. Be sure to dry your feet completely before putting shoes or socks on. Any time your feet get wet, they need to be thoroughly dried before being confined to shoes and/or socks again. This will also help minimize the potential for bacteria growth. You may even want to use a hairdryer on your feet to make sure they are super dry. Antiperspirant deodorant can be applied to other parts of the body too, not just to underarms. If your feet are sweating a lot, try spraying some deodorant on the soles of your feet before you put your socks on.  Make sure you use the antiperspirant type of deodorant for the best results. Look for the active ingredients aluminum zirconium (trichlorohydrex) or aluminum chloride (hexahydrate). You can start by applying the same kind of deodorant you use on your underarms to your feet. But if this seems to have minimal effect, you may need to ask your doctor about prescription strength deodorant. Purchase a spray antiperspirant deodorant for your feet.

Summary:
Wash your feet every day. Let your feet dry. Apply deodorant on your feet.