Most yeast infections are cured with antifungal medicines available over the counter or by prescription. A standard course of treatment, typically lasting 3 to 7 days for topical options or a single pill for the oral route, clears the majority of uncomplicated infections. The right choice depends on your symptoms, whether you’ve had yeast infections before, and whether you’re pregnant.
Over-the-Counter Antifungal Treatments
For a first-time or occasional yeast infection, over-the-counter creams and suppositories are the most common starting point. These contain antifungal ingredients like miconazole (sold as Monistat) or clotrimazole (sold as Mycelex or Lotrimin AF). You insert the cream or suppository vaginally, usually at bedtime, for 3 to 7 days depending on the product strength. Shorter courses use a higher concentration of the active ingredient, while longer courses use a lower one.
These medicines work by blocking the production of a specific fat molecule that fungal cells need to build their outer membranes. Without it, the cell walls weaken and the organism can no longer maintain its internal chemistry, effectively stopping the infection from growing and allowing your body to clear it.
A single-day suppository option (tioconazole) also exists. All of these topical treatments have similar cure rates, so the choice often comes down to whether you prefer a shorter, stronger dose or a gentler course spread over a week.
Prescription Oral Treatment
If you’d rather skip the creams, a doctor can prescribe fluconazole, a single 150 mg pill taken by mouth. For mild, uncomplicated infections, symptoms typically start improving within one to three days after that single dose. If the infection is more stubborn, a provider may prescribe three doses taken three days apart, with full improvement expected within one to two weeks.
Fluconazole works through the same mechanism as the topical antifungals, disrupting the fungal cell membrane from the inside out. The main advantage is convenience: one pill versus several nights of vaginal application. The main drawback is that it requires a prescription and can interact with certain other medications, so it’s worth mentioning any drugs you’re currently taking.
How to Tell It’s Actually a Yeast Infection
Before reaching for any treatment, it helps to be confident about what you’re dealing with. Yeast infections, bacterial vaginosis (BV), and trichomoniasis can all cause irritation and unusual discharge, but they require completely different medicines. Treating the wrong condition wastes time and can make symptoms worse.
Yeast infection discharge is usually thick, white, and odorless, sometimes described as resembling cottage cheese. BV discharge tends to be grayish, foamy, and fishy-smelling. Trichomoniasis produces frothy, yellow-green discharge that smells bad and may contain spots of blood. If your symptoms don’t match the classic yeast infection pattern, or if over-the-counter treatment doesn’t work within a week, it’s worth getting tested rather than guessing.
Treatment During Pregnancy
Yeast infections are common during pregnancy, and the safe options narrow considerably. Vaginal creams and suppositories containing clotrimazole or miconazole are considered safe to use. Oral fluconazole, however, is not recommended during pregnancy, particularly in the first trimester. Research has identified a possible link between oral antifungal pills and miscarriage or birth defects. Stick with topical treatments and let your provider know you’re pregnant before starting anything.
When Infections Keep Coming Back
Some people get four or more yeast infections in a single year. At that point, the standard one-and-done approach usually isn’t enough. Your provider will likely want to confirm the diagnosis with a lab test, because recurrent symptoms sometimes turn out to be a different condition entirely.
Recurrent infections are also more likely to involve yeast strains that don’t respond well to standard antifungals. For these resistant cases, boric acid suppositories (600 mg inserted vaginally once daily for 3 weeks) are a recommended option in CDC treatment guidelines. Boric acid is not taken by mouth and is only used when conventional antifungals haven’t worked. It’s available without a prescription at most pharmacies but is best used under a provider’s guidance for recurrent or resistant infections.
Do Probiotics Help?
Probiotics containing specific Lactobacillus strains have shown some promise, but they’re better understood as a support measure than a cure for an active infection. In a randomized trial of 64 women, those who took oral capsules of Lactobacillus rhamnosus GR-1 and Lactobacillus fermentum RC-14 daily for 60 days had significantly more healthy vaginal bacteria and measurably less yeast compared to the placebo group. However, this study looked at healthy women with asymptomatic imbalances, not people with full-blown symptomatic infections.
If you’re prone to yeast infections, a daily probiotic with these strains may help keep your vaginal flora balanced between episodes. But if you’re dealing with itching, burning, and discharge right now, you need an actual antifungal to clear the infection. Probiotics won’t do that job on their own.
What to Expect After Starting Treatment
With either topical or oral antifungals, most people notice itching and burning start to ease within the first one to three days. That doesn’t mean the infection is gone. Finishing the full course matters, especially with multi-day creams. Stopping early because you feel better can leave enough yeast alive to bounce back.
If your symptoms haven’t improved at all after three days, or if they’ve gotten worse, the original diagnosis may have been wrong. This is especially common for people self-treating based on symptoms alone. A simple swab test at a clinic can confirm whether yeast is the actual culprit and guide you toward the right treatment.