A 28-year-old woman with a history of recurrent  Escherichia coli  urinary tract infections while taking nightly cotrimoxazole presents with her fifth episode of bacterial vaginosis (BV) in the past year. She has only been sexually active with her husband. She has tried several courses of topical metronidazole, oral metronidazole, and douching. She has tried eating yogurt and consumes cranberry drinks every day. However, she has had no improvement in her malodorous vaginal discharge. She is frustrated and wants your opinion. *This case is from Docplexus editorial team for educative purpose only Source: Orenstein, R., & Litin, S. C.

(2010, February). Clinical pearls in infectious diseases. In Mayo Clinic Proceedings (Vol. 85, No. 2, p. 172). Mayo Foundation.