Treating vaginitis depends entirely on what’s causing it, because the three most common types, bacterial vaginosis, yeast infections, and trichomoniasis, each require different medications. A fourth type, atrophic vaginitis, occurs after menopause and needs its own approach. Getting the right diagnosis is the critical first step, since using the wrong treatment can make symptoms worse or delay recovery.
Why the Type of Vaginitis Matters
Each form of vaginitis has a distinct cause. Bacterial vaginosis results from an overgrowth of certain bacteria that are normally present in small numbers. Yeast infections are caused by fungal overgrowth, most often Candida. Trichomoniasis is a sexually transmitted infection caused by a parasite. Atrophic vaginitis stems from declining estrogen levels, usually after menopause. An antibiotic won’t clear a yeast infection, and an antifungal won’t touch bacterial vaginosis, so a correct diagnosis saves you time, money, and discomfort.
One useful clue is vaginal pH. Bacterial vaginosis typically raises pH above 4.5, and trichomoniasis pushes it above 5.4, while yeast infections usually leave pH in the normal range of 4.0 to 4.5. Your clinician may test pH along with examining discharge under a microscope to pinpoint the cause.
Treating Bacterial Vaginosis
Bacterial vaginosis (BV) is treated with prescription antibiotics, either taken by mouth or applied vaginally as a gel or cream. The oral option is typically a seven-day course taken twice daily. A vaginal gel applied at bedtime for five days is an alternative that delivers medication directly to the area and tends to cause fewer stomach-related side effects. Both approaches have similar cure rates for a first episode.
The challenge with BV is recurrence. Many people find it comes back within a few months. For repeated episodes, a longer suppressive strategy can help: vaginal antibiotic gel used twice a week for three months or more has been shown to reduce recurrences, though the benefit tends to fade once you stop. A more aggressive option for stubborn cases involves completing a full week of oral antibiotics, followed by three weeks of vaginal boric acid suppositories, and then several months of twice-weekly vaginal antibiotic gel. This multi-step approach has shown promise, but it requires patience and close follow-up with your provider.
Treating Yeast Infections
Uncomplicated yeast infections are one of the few types of vaginitis you can treat without a prescription. Over-the-counter antifungal creams and suppositories (brands like Monistat) come in different lengths: short courses of one to three days use a higher concentration, while longer courses of seven to 14 days use a lower dose. Both work equally well. A single prescription pill taken by mouth is another option and is considered equivalent to the topical treatments in effectiveness.
If you’ve been diagnosed with a yeast infection before and recognize the same symptoms, an OTC treatment is reasonable. But if this is your first episode, your symptoms are unusual, or the infection keeps returning (four or more times a year), it’s worth getting tested. Recurrent yeast infections sometimes require a longer initial treatment followed by weekly oral medication for six months to keep the fungus in check.
Yeast Infections During Pregnancy
If you’re pregnant, vaginal antifungal creams and suppositories like clotrimazole and miconazole are safe to use at any stage of pregnancy. They don’t cause birth defects or pregnancy complications. Oral antifungal pills, however, should be avoided during pregnancy, particularly in the first trimester, because of a possible link to miscarriage and birth defects.
Treating Trichomoniasis
Trichomoniasis requires a prescription antibiotic, and the recommended approach differs for women and men. For women, a seven-day course of oral metronidazole (taken twice daily) is preferred. This regimen cuts the chance of testing positive at a one-month follow-up by half compared to a single large dose. For men, a one-time oral dose is the standard recommendation. Vaginal gels do not work for trichomoniasis because they can’t reach the parasite in the urethra and surrounding glands.
Partner treatment is essential. Because trichomoniasis is sexually transmitted, all current sexual partners need to be treated at the same time, even if they have no symptoms. Both partners should avoid sex until treatment is complete and symptoms have resolved. Without simultaneous partner treatment, reinfection is almost guaranteed.
Treating Atrophic Vaginitis
Atrophic vaginitis doesn’t involve an infection at all. It happens when estrogen levels drop, causing vaginal tissue to become thinner, drier, and more easily irritated. This is common after menopause but can also occur during breastfeeding or with certain medications. Treatment focuses on restoring moisture and, in many cases, estrogen.
For mild symptoms, non-hormonal options are the first step. Vaginal moisturizers applied regularly (not just before sex) help restore baseline moisture. Water-based or silicone-based lubricants reduce friction and pain during intercourse. Look for products without glycerin or warming ingredients like capsaicin, which can cause irritation. If you use latex condoms, avoid petroleum jelly and oil-based products, as these break down latex on contact.
When dryness and discomfort are more significant, low-dose vaginal estrogen is highly effective. It comes in several forms: a cream inserted with an applicator, a small suppository placed in the vagina (daily for two weeks, then twice weekly), a flexible ring that sits in the upper vagina and releases estrogen steadily for about three months, or a vaginal tablet. All deliver estrogen locally with minimal absorption into the rest of the body. For people who also have hot flashes, night sweats, or other widespread menopause symptoms, systemic estrogen through a pill, patch, or gel may make more sense because it treats everything at once.
Preventing Recurrence
Some straightforward habits reduce the risk of vaginitis coming back. Avoid douching and vaginal sprays, which kill protective bacteria and disrupt the vaginal environment. Wear cotton-lined underwear and avoid tight, heat-trapping clothing like nylon underwear or snug jeans, especially if you’re prone to yeast infections. Condoms help protect against sexually transmitted forms of vaginitis, including trichomoniasis.
If you’re dealing with repeated infections, keeping a brief log of when symptoms appear can help your provider spot patterns. Some people notice flare-ups tied to their menstrual cycle, new sexual partners, or antibiotic use for other conditions. Identifying triggers makes targeted prevention much easier than treating episode after episode.