A 33-year-old woman presents with a 7-day history of vaginal itching, a burning vulvar discomfort after urination, and a new vaginal discharge. A pelvic examination reveals a thick, white, vaginal discharge. Examination of the external genitalia reveals significant vulvar edema and erythema. She has no other medical problems, takes no medications, and reports one prior episode of vulvovaginal candidiasis about 3 years prior.