Good personal hygiene, including a daily bath or shower, use of deodorant, good oral hygiene, and clean undergarments, is essential to prevent body odor. A daily bath or shower helps to remove sweat and bacteria from the body, while the use of deodorant helps to mask or neutralize any odor. Good oral hygiene, such as brushing and flossing regularly, can also prevent bad breath, which can contribute to body odor. Additionally, wearing clean undergarments helps to prevent the buildup of sweat and bacteria in the groin area, which can cause odor. Therefore, the best way to prevent body odor is to practice all of these hygiene measures.