Lemon juice and its many organic acids have long been praised for their antibacterial nature, which is why it is so often included in household cleaners and antiseptic products. The same thing is true for our skin, so lemon juice applied to the body can eliminate infections from fungi and bacteria that cause body odor. This is particularly true if you apply lemon juice to your feet or underarms, which are the two spots that tend to harbor bacterial and fungal infections, due to their damp, enclosed nature. Lemon juice mixed with some water can be dabbed in these sensitive areas to keep that smell at bay!