Most yeast infections clear up within a few days to a week with antifungal medication, and many of the most effective options are available without a prescription. The treatment you choose depends on whether this is a one-time infection, a recurring problem, or a situation with specific considerations like pregnancy.
Over-the-Counter Antifungal Treatments
For a straightforward yeast infection, OTC antifungal creams and suppositories are the standard first step. The three most common active ingredients are clotrimazole (sold as Lotrimin and Mycelex), miconazole (sold as Monistat), and tioconazole (sold as Vagistat-1). All three work by disrupting the outer membrane of the yeast cell, which stops it from growing and eventually kills it.
These products come in 1-day, 3-day, and 7-day formulas. The difference isn’t how well they work but how concentrated they are. A 7-day cream uses a lower concentration spread over a longer period, while a 1-day treatment packs the same antifungal punch into a single, stronger dose. Shorter courses are more convenient, but the 7-day versions tend to cause less local irritation because the medication is more diluted. If you’ve never treated a yeast infection before, a 3-day or 7-day option is a reasonable starting point.
Most people notice itching and irritation start to ease within the first two or three days. Complete resolution typically takes up to a week, though more severe infections can linger longer.
Prescription Options
If OTC treatments haven’t worked, or if you’d rather skip the creams, a single 150 mg oral dose of fluconazole is the go-to prescription treatment. It’s a pill you take once, and it works the same way topical antifungals do, just from the inside. Many people prefer the convenience of a single pill over several nights of vaginal cream.
For recurrent infections (three or more in a single year, which affects fewer than 5% of women), a healthcare provider may prescribe a longer course of fluconazole spread over several weeks, sometimes followed by a maintenance dose to keep the infection from returning.
Treatment During Pregnancy
If you’re pregnant, topical antifungals like clotrimazole and miconazole are considered safe at any point during pregnancy and don’t cause birth defects or pregnancy complications. The Mayo Clinic recommends choosing a 7-day formula for best results during pregnancy.
Oral antifungals are a different story. Fluconazole, especially during the first trimester, has a possible link to miscarriage and birth defects. Topical creams and suppositories are the clear choice here.
When Standard Treatments Don’t Work
Sometimes a yeast infection doesn’t respond to the usual antifungals. This can happen when the infection is caused by a less common yeast species, such as Candida glabrata or Candida tropicalis, rather than the typical Candida albicans. These species are naturally more resistant to standard azole medications.
Boric acid suppositories are one of the most effective alternatives for these stubborn infections. UW Medicine describes boric acid as “an excellent therapy” for recurrent infections and those caused by atypical yeast species. The typical protocol is one vaginal capsule each night for two weeks to clear an active infection. For prevention of recurrences, you can then use them twice a week (for example, Monday and Thursday nights) for six to twelve months.
You can buy pre-made boric acid suppositories or make them yourself using boric acid powder (not crystals) packed into size “0” gelatin capsules. Boric acid is for vaginal use only and should never be taken by mouth.
Home Remedies: What Helps and What Doesn’t
Tea tree oil shows up frequently in online recommendations, but the evidence supporting it for yeast infections is thin. What is well documented is that tea tree oil can cause skin irritation, allergic reactions, itching, stinging, and burning, particularly on sensitive skin. Applying it to already-irritated vaginal tissue carries a real risk of making things worse. If you have sensitive skin or eczema, avoid it entirely.
Plain yogurt applied topically is another popular suggestion. The idea is that the Lactobacillus bacteria in yogurt can help restore vaginal balance. While the logic isn’t wrong in principle, yogurt contains far fewer bacteria than a targeted probiotic supplement and introduces dairy sugars into an environment where you’re trying to control yeast overgrowth. It’s not a reliable treatment for an active infection.
Preventing Recurrences With Probiotics
Probiotics won’t clear an existing yeast infection, but specific strains can help prevent them from coming back. Lactobacillus rhamnosus is the most studied strain for this purpose. Research shows it kills both bacteria and yeast in the vagina and can restore healthy vaginal flora in people with a history of yeast infections, bacterial vaginosis, or urinary tract infections. It survives acidic conditions in the body well, which means it actually reaches the areas where it’s needed.
Lactobacillus crispatus is another strain with solid human trial data supporting its role in vaginal health. If you’re looking at probiotic supplements for prevention, these are the two strains to look for on the label. A general “women’s health” probiotic that doesn’t list specific strains is less likely to deliver meaningful results.
How to Tell It’s Actually a Yeast Infection
About two-thirds of women who self-diagnose a yeast infection are wrong. Bacterial vaginosis, contact irritation, and other conditions can cause similar symptoms: itching, burning, and unusual discharge. The classic yeast infection produces thick, white, clumpy discharge (often compared to cottage cheese) with intense itching but typically no strong odor. Bacterial vaginosis, by contrast, usually comes with a thin, grayish discharge and a fishy smell.
If OTC antifungals don’t improve your symptoms within a few days, or if this is your first time experiencing these symptoms, getting a proper diagnosis matters. Treating the wrong condition not only wastes time but can allow the actual problem to worsen.