If the lower part is particularly itchy and has a fishy odor, clinically it is often caused by mixed infections, such as both Candida infection and Gardnerella infection, which leads to the itching of the vulva and the vaginal discharge with a fishy odor. It can be treated with vaginal plugs of mycotoxin suppositories and oral metronidazole for 7 days, 3 times/day, 1 tablet/time. It is recommended to take it orally after meals because metronidazole can cause gastrointestinal reactions. In addition, if the symptoms disappear, it is recommended to stop the medicine. If the symptoms do not disappear, you can use another course of topical medicine for treatment. In addition, it is not allowed to have sex during the medication. It is recommended to have a gynecological examination once a year and be screened for cervical cancer.