Women with bad odor down there are usually suffering from vaginitis or cervicitis. In this case, it is necessary to go to the gynecology department for routine gynecological examination and, if necessary, to take a routine examination of the leukorrhea or cervical secretion, and according to the type of pathogen, choose the appropriate medication for treatment as follows: 1. Bacterial vaginitis: can be treated with oral metronidazole or vaginal plug metronidazole pessary. 2. Trichomoniasis: need to be treated with oral metronidazole tablets for both husband and wife. 3, Mycosis fungoides: Treatment with antifungal drugs is required. Women who have sex can be treated with vaginal clotrimazole plugs, while women who do not have sex can be treated with oral fluconazole tablets.