A positive test for hydrogen peroxide indicates a dysbiosis of the vaginal flora, and a change in pH can also cause hydrogen peroxide to be (+): The treatment can be done by washing the vulva with 1:10 water. For example, if there is itching and odor in the vulva, vaginal medication can be used, such as metronidazole suppositories or diazotide cream, which can be used every night for 7-10 days. You should also pay attention to your personal hygiene, wash your vulva every day and scald your underwear with boiling water to disinfect and sterilize it.