Most yeast infections clear up within a few days to a week using over-the-counter antifungal treatments you can pick up at any pharmacy. These infections are caused by an overgrowth of Candida, a fungus that normally lives in small amounts in the vagina. When something throws off the balance of bacteria that keep Candida in check, it multiplies and causes the familiar itching, burning, and thick, cottage cheese-like discharge.
Over-the-Counter Antifungal Treatments
The fastest way to treat a yeast infection at home is with an antifungal cream, ointment, or suppository. These are available without a prescription in 1-day, 3-day, and 7-day regimens. The active ingredients (miconazole and clotrimazole are the most common) work by breaking down the cell walls of the Candida fungus. The 1-day treatments contain a higher concentration of medication, not a faster-acting formula, so symptom relief takes roughly the same amount of time regardless of which regimen you choose.
You should start feeling relief from itching and burning within the first day or two. Discharge and irritation typically take longer to fully resolve. More severe infections can linger beyond a week and may need a stronger approach.
Prescription Treatment
If over-the-counter options don’t work, or if you’d rather skip the creams, a single 150 mg oral antifungal tablet is the standard prescription treatment. One dose is usually enough for an uncomplicated infection. For recurrent cases (three or more infections in a single year, which affects fewer than 5% of women), the approach is more aggressive: a dose every third day for three total doses, followed by a weekly maintenance dose to keep the fungus suppressed long-term.
Recurrent yeast infections are worth a medical visit because they sometimes involve a less common strain of Candida that doesn’t respond well to standard treatments. A provider can confirm the diagnosis with a swab and tailor the treatment accordingly.
Make Sure It’s Actually a Yeast Infection
This matters more than most people realize. Bacterial vaginosis (BV) causes similar symptoms but requires completely different treatment, and using antifungal medication for BV won’t help. The discharge is the biggest clue: yeast infections produce thick, white, clumpy discharge, while BV tends to cause thin, grayish discharge that’s heavier in volume. BV also often comes with a noticeable fishy odor, which yeast infections typically don’t.
The vagina maintains a slightly acidic environment thanks to protective Lactobacillus bacteria. Yeast infections happen when Candida overgrows in that environment, while BV happens when the bacterial balance shifts and pH rises. Semen and menstrual blood both have a higher pH than the vagina, which is one reason BV tends to flare around periods or after sex. If you’re unsure what you’re dealing with, especially if it’s your first time experiencing symptoms, getting a proper diagnosis prevents you from wasting time on the wrong treatment.
Boric Acid for Stubborn Infections
Boric acid vaginal suppositories are sometimes used for yeast infections that don’t respond to standard antifungals. The typical regimen is one 600 mg suppository inserted at bedtime for 7 days, extending up to 14 days for chronic irritation. Boric acid works by creating an environment that’s inhospitable to yeast, and it can be particularly useful against resistant Candida strains.
Boric acid is toxic if swallowed and should only be used as a vaginal suppository. It should not be used during pregnancy.
What About Probiotics?
The idea of restoring “good” bacteria to crowd out yeast makes intuitive sense, and probiotics are widely marketed for vaginal health. The reality is less encouraging. Small clinical trials have tested vaginal probiotics for treating yeast and bacterial infections, but none have demonstrated enough effectiveness to support large-scale use. That said, supporting your overall microbiome through diet (fiber, fermented foods, limited added sugar) is a reasonable long-term strategy, even if popping a probiotic capsule isn’t a proven fix for an active infection.
Why You Keep Getting Them
If yeast infections keep coming back, something in your body or routine is likely creating a favorable environment for Candida. High blood sugar is one of the biggest risk factors. When blood glucose stays elevated, excess sugar can be released in urine, essentially feeding yeast and encouraging overgrowth. For people with diabetes, keeping blood sugar well controlled directly reduces yeast infection frequency.
Antibiotics are another common trigger. They kill off Lactobacillus along with whatever infection they’re treating, leaving a gap for Candida to fill. If you notice yeast infections tend to follow a course of antibiotics, mention the pattern to your provider so you can plan ahead.
Hormonal shifts during pregnancy, around your period, or from oral contraceptives can also change the vaginal environment enough to trigger an infection. A weakened immune system, whether from stress, poor sleep, or an underlying condition, plays a role too.
Prevention Habits That Actually Help
Most prevention advice comes down to keeping the vaginal area cool, dry, and free from unnecessary chemical exposure.
- Wear breathable fabrics. Cotton underwear allows airflow. Synthetic fibers trap heat and moisture, especially in warm climates.
- Avoid tight clothing that increases friction and irritation in the vaginal area.
- Change pads and panty liners frequently to stay as dry as possible.
- Skip douches and vaginal deodorants. These disrupt the natural bacterial balance that keeps Candida in check.
- Limit added sugar. A diet high in sugar may raise your risk. Fiber-rich foods and fermented foods support a healthier microbiome overall.
- Manage stress, sleep, and exercise. Your immune system is the first line of defense against overgrowth, and these basics keep it functioning well.
If you use a vaginal moisturizer, make sure it’s a product specifically designed for vaginal use. General lotions or oils can introduce ingredients that shift pH or irritate tissue.