Bacterial vaginosis – Diagnosis and treatment – Mayo Clinic

It’s common for bacterial vaginosis to recur within three to 12 months, despite treatment. Researchers are exploring treatments for recurrent bacterial vaginosis. If your symptoms recur soon after treatment, talk with your doctor about treatments. One option may be extended-use metronidazole therapy.

https://www.mayoclinic.org/diseases-conditions/bacterial-vaginosis/diagnosis-treatment/drc-20352285