2. Don't use antiperspirant/deodorant (except in cases of excessive sweating). It will actually end up making you smell worse than ever. Not many people know this, but perspiration by itself has no odor at all. Underarm odor is caused by bacteria and their excrement. Soap and deodorant actually supply food for the bacteria and they excrete even more. This is easy to verify. Just wash your underarms with nothing but water and a clean cloth. Do this for a month. You will not smell at all. If it is too much sweating giving you trouble, then you should actually use an antiperspirant. This is because this product helps to cut down on your sweating.
