When my patients have this complaint, I typically will do a wet mount to confirm, and if clue cells are found, I will treat with Flagyl orally, or vaginally.
Another option is Clindamycin
, orally or vaginally. Another important thing is for the patient to re-establish a healthy culture of "good bacteria" or lactobacillus. This can be done by eating yogurt with live bacterial cultures, or by taking probiotics, for example.