The third degree of cleanliness indicates a mild inflammation of the vagina, which will heal with 7 days of clinical insertion. The specific method is to insert metronidazole suppositories into the vagina once a day, one capsule at a time, for 7 days. During the medication period, you should not have sexual intercourse. After 3-7 days of stopping the medication, you should go to the hospital to review the white belt routine. In addition, it is recommended to keep the vulva clean and try not to wear tight underwear or outer pants, so that the local ventilation is good, so as to avoid the infection of pathogenic bacteria. In addition, in daily life, especially pay attention to the hygiene of sexual life and menstrual period. It is also recommended that women who have a history of sexual intercourse for more than 3 years, or are over 30 years old, should be screened for cervical cancer once a year.