Getting rid of a vaginal infection depends entirely on which type you have, because the three most common infections require different treatments. A yeast infection clears with antifungal medication, bacterial vaginosis (BV) requires antibiotics, and trichomoniasis needs a specific prescription antibiotic plus partner treatment. Using the wrong approach won’t help and can make things worse, so identifying your infection is the essential first step.
How to Tell Which Infection You Have
The three main vaginal infections look and feel different from each other, and paying attention to your discharge is the fastest way to narrow things down.
Yeast infections produce a thick, white discharge that often looks like cottage cheese. It typically has no smell. The hallmark symptom is intense itching and irritation around the vulva, sometimes with swelling and burning during urination or sex.
Bacterial vaginosis causes a thin white or gray discharge with a strong fishy odor, especially after sex. Itching is less prominent than with yeast infections, and many women with BV notice the smell before anything else. BV is the most common vaginal infection in women ages 15 to 44.
Trichomoniasis is a sexually transmitted infection that produces a gray-green discharge that may smell bad. It often causes burning, redness, and soreness in the genital area. About 70% of people with trichomoniasis have no symptoms at all, which is one reason it spreads easily.
At-home pH test strips can offer a rough clue. A vaginal pH above 4.5 suggests BV or trichomoniasis rather than a yeast infection, which typically doesn’t raise pH much. That said, pH strips have a positive predictive value of only about 71% for detecting BV, so they’re a starting point, not a diagnosis.
Treating a Yeast Infection
If you’ve had a yeast infection before and recognize the symptoms, over-the-counter antifungal creams and suppositories are effective. These topical treatments, available in 1-day, 3-day, and 7-day courses, produce cure rates above 80%. A single-dose oral prescription pill works just as well, with similar cure rates in clinical comparisons. Most women feel significant relief within two to three days of starting treatment, though you should complete the full course regardless.
If you’ve never had a yeast infection before, or if your symptoms don’t match the classic pattern, get tested before treating yourself. Misdiagnosing BV as a yeast infection and using antifungal cream is a common mistake that delays proper treatment.
Recurrent Yeast Infections
Three or more yeast infections in a single year qualifies as recurrent vulvovaginal candidiasis. This pattern affects a significant number of women and calls for a different strategy. The standard approach is a weekly oral antifungal dose continued for six months. This maintenance schedule keeps the infection from returning while allowing the vaginal environment to stabilize. If standard antifungal medications stop working, boric acid vaginal suppositories have become a first-line alternative in cases of drug resistance. A typical protocol involves daily use for 7 to 14 days, followed by two to three times per week for ongoing maintenance. Boric acid is not FDA-approved for this purpose, is toxic if swallowed, and should never be used during pregnancy. Side effects are uncommon but can include mild vaginal irritation.
Treating Bacterial Vaginosis
BV requires a prescription antibiotic. There is no effective over-the-counter treatment for it. The standard options are a 7-day course of oral antibiotics taken twice daily, a vaginal antibiotic gel applied once daily for 5 days, or a vaginal antibiotic cream used at bedtime for 7 days. Your provider will choose based on your preferences and medical history.
BV has a frustrating tendency to come back. Up to half of women who are successfully treated experience a recurrence within 12 months. This is partly because the underlying shift in vaginal bacteria can be difficult to reverse permanently. Completing the full course of antibiotics, even after symptoms disappear, gives you the best chance of a lasting result.
Treating Trichomoniasis
Trichomoniasis is curable with a single oral dose of a prescription antibiotic. An alternative medication in the same drug class is equally effective. The critical piece that many people miss: your sexual partner must be treated at the same time, even if they have no symptoms. Without concurrent partner treatment, reinfection is nearly guaranteed. Both partners should avoid sex until treatment is complete and all symptoms have resolved. In some states, your provider can prescribe medication for your partner without seeing them, which removes a common barrier to getting this done.
What Probiotics Can Actually Do
Oral probiotics containing specific strains of beneficial bacteria have shown real promise for restoring vaginal health. In a clinical trial, women who took a combination of two specific Lactobacillus strains daily achieved a healthy vaginal flora in up to 90% of cases. Among participants who had BV at the start of the study, 7 out of 11 converted to a normal or intermediate bacterial balance within one month. The effective dose was at least 100 million viable organisms per day, taken orally.
Probiotics work best as a complement to standard treatment, not a replacement. They may help prevent recurrences after you’ve cleared an active infection with medication, particularly for BV. Not all probiotic products contain the strains studied for vaginal health, so look for products that specifically list strains researched for urogenital support.
Preventing Infections From Coming Back
Several straightforward habits reduce your risk of vaginal infections across all three types:
- Wear cotton underwear and breathable clothing. Synthetic fabrics trap moisture, creating the warm, damp conditions that yeast and harmful bacteria thrive in.
- Keep the area clean and dry. Wash with plain water or a mild, unscented soap. Change out of wet swimsuits and sweaty workout clothes promptly.
- Avoid douching. Douching strips away protective bacteria and disrupts the vaginal pH balance, directly increasing your risk of BV and yeast infections.
- Use antibiotics only when necessary. Antibiotics kill the beneficial Lactobacillus bacteria that keep your vaginal environment acidic and protective. If you need a course of antibiotics for another condition, a probiotic during and after treatment may help offset the impact.
- Skip scented products in the genital area. Scented tampons, pads, sprays, and bubble baths can irritate vaginal tissue and shift the bacterial balance.
Signs of a More Serious Problem
Most vaginal infections are uncomfortable but not dangerous. However, fever, chills, or pelvic pain alongside vaginal symptoms can signal that an infection has spread beyond the vagina, potentially to the uterus or fallopian tubes. This is a situation that needs prompt medical attention. The same applies if you’ve treated what you thought was a yeast infection with over-the-counter medication and your symptoms haven’t improved after a few days, or if your discharge has an unusual color like green or yellow that doesn’t match a straightforward yeast infection. A new infection during pregnancy also warrants a provider visit, since BV and trichomoniasis can affect pregnancy outcomes.