Normal female leucorrhea cleanliness is degree I and II. If it reaches degree III and IV, it is abnormal and considered to have vaginal inflammation. You should use medication for symptomatic treatment, usually 5-7 days as a course of treatment, you can use metronidazole pessary or diazoxide vaginal gel. After the next menstrual period, you should review the white belt routine because the vaginal flora is disturbed after menstruation and vaginal inflammation is likely to recur. Therefore, it is necessary to review the leucorrhoea routine immediately after menstruation and adjust the medication according to the routine results for another course of treatment. It is better to adhere to 3 courses of treatment to consolidate the treatment and reduce the recurrence of vaginal inflammation.