Metronidazole vaginal drug mainly for the treatment of trichomonas vaginitis and bacterial vaginosis, every night before going to bed after cleaning the vulva and vagina, lying on the bed to the metronidazole acid inserted into the vagina for treatment, inserted into the depth of about 10cm or so, pad a sanitary napkin directly to sleep on it. Because of the night plugging after the drug in the vagina to retain a relatively long time, the efficacy of the time will be longer, will achieve a better therapeutic effect, and in the clinical symptoms completely disappeared after stopping the drug for 3-7 days, you can go to the hospital to do the appropriate examination, to understand the original pathogenic bacteria has turned negative, and in the vaginal medication during the period of sexual intercourse is not allowed. In addition, to keep the vulva local clean, diet do not eat acidic and spicy stimulating food.