Compound metronidazole vaginal suppositories are usually inserted for 7-10 days as a course of treatment, mainly for vaginal infections caused by anaerobic bacteria, such as bacterial vaginosis, senile vaginitis, trichomoniasis, etc. It is especially effective for trichomoniasis. In trichomoniasis, there is greyish-yellow foamy leucorrhea, odor, vulvar itching and even local burning sensation. You can use metronidazole pessary for vaginal application, wash vulva daily during treatment, keep vulva clean and hygienic, prohibit sexual intercourse to avoid cross infection. For infections caused by bacterial vaginosis and senile vaginitis, you can also use metronidazole vaginal suppositories for treatment. Regardless of the type of vaginal inflammation, a routine review of the leucorrhoea should be performed at the end of the treatment to understand the effect of the treatment.