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Baking soda helps get rid of external body odor by killing the bacteria that grows in areas like underarms, breast creases, and the inner thighs. While in the shower or bath, massage a baking soda paste onto desired areas (paste recipe below). Let set for 2 or 3 minutes, then wash the area as usual.The baking soda paste will help kill the bacteria that causes the body odor, leaving the area smelling fresher longer.ow to Make Baking Soda Paste. Mix together 3 tablespoons of baking soda and 1 tablespoon of water using a spoon. Mush the mixture around in the bowl until it forms a paste. Thatâs it! Note: If baking soda gets into cuts or scrapes, it burns.
1 Take a small mixing bowl and place this baking soda and freshly squeezed lemon juice in it. 2  Mix them well until the baking soda properly mixed in lemon juice. 3  Apply this on your underarms and other body parts where you perspire excessively with the help of either cotton pad or finger tips. Take some amount of baking soda and dust this particularly on the places where you get more sweating such as underarms, feet, groin areas, etc. 2  Let it sit for few minutes to absorb the sweating by killing bacteria and to clear body odor.