Bacterial vaginosis (BV) is treatable with antibiotics, but keeping it from coming back often requires a combination of medical treatment, lifestyle shifts, and attention to what’s disrupting your vaginal environment in the first place. Up to 58% of women experience a recurrence within 12 months of treatment, so a one-and-done approach rarely works. Here’s what actually helps, both for clearing an active case and reducing your chances of dealing with it again.
What BV Is and Why It Keeps Coming Back
BV happens when the balance of bacteria in your vagina shifts. Normally, beneficial Lactobacillus bacteria dominate and keep the environment slightly acidic. When other bacteria, particularly species like Gardnerella, overgrow and crowd out Lactobacillus, the pH rises and symptoms appear: a thin grayish-white discharge, a fishy odor (often stronger after sex), and sometimes mild irritation.
The frustrating reality is that BV has one of the highest recurrence rates of any common infection. In one study tracking women after a standard course of oral antibiotics, 23% had a recurrence within one month, 43% within three months, and 58% within a year. This isn’t because the antibiotics failed the first time. It’s because the underlying conditions that allowed the imbalance often persist, and the beneficial bacteria don’t always reestablish themselves fully after treatment.
Antibiotic Treatment Options
If you have symptoms, antibiotics are the first-line treatment and the fastest way to resolve an active BV episode. The CDC recommends three standard options: oral metronidazole taken twice daily for seven days, metronidazole vaginal gel applied once daily for five days, or clindamycin vaginal cream applied at bedtime for seven days. All three are prescription-only.
Oral and vaginal options work similarly well. Some women prefer the vaginal route because it causes fewer side effects like nausea. Others prefer the convenience of a pill. One thing to know: metronidazole interacts badly with alcohol, so you’ll need to avoid drinking during treatment and for at least 24 hours after finishing the course. Clindamycin cream can also weaken latex condoms, so use alternative protection or abstain during treatment.
Why Partner Treatment Now Matters
For years, treating sexual partners wasn’t recommended because the evidence wasn’t strong enough. That changed recently. In 2025, the American College of Obstetricians and Gynecologists recommended for the first time that male sexual partners be treated alongside women with recurrent BV, using a combination of oral and topical antibiotics.
The logic is straightforward. Research increasingly shows that the bacteria responsible for BV can be carried by male partners on the penis, particularly under the foreskin, and passed back during sex. If only one partner is treated, the other can reintroduce the disruptive bacteria. This recommendation applies specifically to recurrent BV, not necessarily a first episode, but it’s worth discussing with your provider if BV keeps returning.
Probiotics for Restoring Vaginal Bacteria
Probiotics aren’t a replacement for antibiotics during an active infection, but clinical trials show they can help restore the vaginal environment and reduce recurrence. The most studied strains are Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14 (also previously classified as L. fermentum RC-14). In trials, women who took these strains orally for two months saw significantly higher cure rates and lower recurrence compared to placebo. Vaginal Lactobacillus acidophilus suppositories used for 6 to 12 days also showed benefits.
The key is choosing a product with strains that have actual clinical data behind them, not just any probiotic labeled “women’s health.” Look specifically for L. rhamnosus GR-1 and L. reuteri RC-14 on the label. Many providers now suggest starting probiotics alongside antibiotic treatment and continuing for several weeks afterward to give beneficial bacteria a better chance of recolonizing.
pH-Balancing Gels and Lactic Acid Products
Over-the-counter vaginal gels containing lactic acid are marketed as a way to maintain healthy vaginal pH, and there is some early evidence they do something measurable. In a pilot study, women who applied a lactic acid gel twice weekly for eight weeks saw statistically significant drops in both vaginal pH and Nugent scores (a lab measure of bacterial balance). The gel also reduced levels of BV-associated bacteria like Prevotella and Gardnerella species without harming existing Lactobacillus.
That said, this was a small study without a placebo group, so the results are preliminary. These gels are unlikely to clear an active BV infection on their own, but they may be a reasonable maintenance strategy between episodes, particularly if you’re prone to recurrence. They’re available without a prescription at most pharmacies.
Dietary Habits That Affect Vaginal Health
What you eat appears to influence your vaginal microbiome more than most people realize. A 2025 study published in Frontiers in Cellular and Infection Microbiology found several dietary patterns linked to the bacterial community type most associated with BV. Higher intake of red and processed meat was positively associated with a dysbiotic vaginal environment. Alcohol consumption showed a statistically significant link to higher levels of Gardnerella and other BV-associated bacteria.
On the protective side, diets higher in fiber, vegetable proteins, and starch were negatively correlated with Gardnerella levels. Alpha-linolenic acid, an omega-3 fat found in flaxseed, walnuts, and chia seeds, was associated with a more favorable vaginal bacterial profile. Previous research has also linked higher intakes of folate, vitamin A, and calcium with lower BV risk, while diets high in fat, total calories, and high-glycemic foods were associated with higher risk.
None of this means a salad will cure BV. But if you’re dealing with recurrent episodes, shifting toward a diet richer in whole grains, vegetables, and omega-3 fats while cutting back on processed meat and alcohol could be one piece of a larger prevention strategy.
Everyday Habits That Protect Your Balance
Several common practices directly disrupt the vaginal environment. Douching is the most well-documented one. It strips away protective bacteria and raises vaginal pH, creating exactly the conditions BV needs to develop. If you currently douche, stopping is one of the single most effective things you can do.
Scented soaps, body washes, and intimate hygiene sprays applied inside or around the vagina can have similar effects. The vagina is self-cleaning, and warm water on the external area is sufficient. Wearing breathable cotton underwear and changing out of wet swimsuits or workout clothes promptly also helps maintain a stable environment. Smoking is another independent risk factor for BV, likely because it affects immune function and the vaginal lining.
Condom use during sex reduces the introduction of bacteria that disrupt vaginal flora. This is true for both new and established sexual partners. Semen itself is alkaline with a pH around 7.2 to 8.0, which temporarily raises vaginal pH after unprotected sex. For women with recurrent BV, consistent condom use can make a noticeable difference.
Building a Plan for Recurrent BV
If BV keeps returning despite standard treatment, a layered approach works better than relying on antibiotics alone. A reasonable strategy might look like this: treat the active episode with a full course of prescribed antibiotics, start an evidence-based probiotic alongside treatment and continue for at least two months, discuss partner treatment with your provider if you have a regular male sexual partner, and make the relevant dietary and hygiene adjustments described above.
Some providers also prescribe suppressive therapy for recurrent cases, using a lower-dose vaginal antibiotic gel applied once or twice weekly for several months after the initial treatment course. This extended approach gives the vaginal microbiome more time to stabilize. Boric acid vaginal suppositories are another option some clinicians recommend, though they’re used off-label and should only be taken vaginally, never orally.
The overall pattern with BV management is that no single intervention is reliable on its own, but combining medical treatment with microbiome support and lifestyle changes significantly improves long-term outcomes. It takes patience, and sometimes a few rounds of adjustment, but most women can find a combination that breaks the cycle.