how to reduce armpit sweating
1 Try using apple vinegar or other malt vinegar to neutralize the armpits' natural odor-causing bacteria. 2  This in turn creates a drying effect in your underarm, which conditions your armpits to sweat less and to stay dry. 3  Try a mixture of lemon juice and tomato pulp before bed. 4  Let sit for 15 minutes. Applying deodorant will do nothing to stop your armpits from sweating though it will mask the odor. 2  You can't stop your body from perspiring completely without medical procedures, which are typically only performed in extreme cases.