There are no stickers or medications that can adequately block bacteria while girls are swimming. The skin and vagina are self-purifying and immune, and normal swimming is not susceptible to infection, so there is no need to put something on specifically to block bacteria. For girls with wounds or broken skin, consider putting a waterproof sterile dressing on the wounds, which will have a certain barrier effect on bacteria. In addition, girls in swimming can reduce the chances of bacterial infection through other ways: 1, pay attention to the pool water quality: it is recommended to try to choose the standard disinfection process of the regular pool, which can somewhat reduce the bacteria and other organic matter in the water, reducing the risk of infection; 2, the use of public supplies: it is recommended that when girls go swimming, avoid direct contact with the vulva public goods, such as public seats, public Towels, etc., to reduce the possibility of cross-infection; 3, avoid menstrual period swimming: in the menstrual cycle or the end of the menstrual period, the girl’s resistance may be reduced, the chances of swimming vaginal infection may increase; 4, after swimming rinse: after swimming, it is recommended that girls immediately wash the vulva and swimsuit with water, and wipe clean with a clean towel, it is recommended that the swimsuit dried in the sun to reduce the risk of infection It is recommended that swimsuits be dried in the sun to reduce the risk of infection. It is recommended that girls with gynecological diseases such as vaginitis and cervicitis avoid swimming in public pools to prevent secondary vaginal infections caused by bacteria in the pool, which can aggravate the disease and avoid infecting others with the disease.