The best gel for bacterial vaginosis is metronidazole gel. Bacterial vaginosis is caused by Gardnerella infection, which is anaerobic and anaerobic bacteria need metronidazole to treat it. Therefore, it is better to treat bacterial vaginosis with metronidazole gel until all the symptoms disappear, then stop the medication for 2-7 days and go to the hospital to review the leucorrhoea routine, if it has turned negative, you can stop using the medication. However, since the dysbiosis of vaginal flora is the cause of the proliferation of anaerobic bacteria, it is recommended to insert lactobacillus capsules into the vagina to further increase the body’s resistance and make the local resistance of the vagina stronger in order to avoid the reinfection of anaerobic bacteria.