Does metronidazole treat a yeast infection?

Vaginal thrush is an overgrowth of yeast that can cause itching, soreness, irritation, and a thick discharge. Metronidazole works against certain bacteria, so it is used for bacterial conditions rather than uncomplicated thrush. A person can have similar symptoms from bacterial vaginosis, dermatitis, or a sexually transmitted infection, so symptoms alone cannot select the right medicine.

Antibiotics can sometimes disturb the vaginal balance and be followed by thrush, although symptoms after treatment still need an appropriate assessment. An antifungal treatment is used when yeast is confirmed or considered likely by a qualified clinician.

If you were prescribed metronidazole for a diagnosed bacterial infection, use it as directed and ask the prescriber before changing it. If you think you have thrush, seek advice about an antifungal rather than adding one yourself. Mention pregnancy, breastfeeding, allergies, repeated episodes, diabetes, and all current medicines.

Avoid douching and perfumed washes. Wash gently with water or a mild unperfumed product, dry carefully, and wear breathable underwear. Arrange review if symptoms do not settle, return frequently, or differ from previous episodes.

Contact a clinician promptly for pelvic pain, fever, sores, blisters, pain when urinating, bleeding, or a strong-smelling discharge. Urgent assessment is needed for severe pain, fainting, or heavy bleeding. These signs can indicate a problem other than straightforward thrush.

Ask what is causing your symptoms, whether a swab or other test is needed, and which antifungal treatment is suitable. If metronidazole was prescribed, ask which infection it targets and whether the treatment should continue while your symptoms are reviewed.