Most vaginal yeast infections clear up within a few days to a week with over-the-counter antifungal treatment. If this is your first infection, you’ve had four or more in a year, or your symptoms don’t improve after treatment, you’ll need a healthcare provider involved. But for a straightforward yeast infection you’ve had before, effective relief is available at any pharmacy without a prescription.
Make Sure It’s Actually a Yeast Infection
Before you treat anything, it helps to confirm what you’re dealing with. Yeast infections and bacterial vaginosis (BV) are the two most common vaginal infections, and they require completely different treatments. Yeast infections produce thick, white, odorless discharge, often with a white coating in and around the vagina. BV discharge tends to be grayish, foamy, and has a noticeable fishy smell. Using an antifungal when you actually have BV won’t help and delays the treatment you need.
Other hallmark symptoms of a yeast infection include intense itching, burning during urination or sex, redness, and swelling of the vulva. If you’ve had a confirmed yeast infection before and recognize these symptoms, you can generally treat it yourself. If this is your first time experiencing them, or something feels different from previous infections, getting tested gives you a clear answer.
Over-the-Counter Treatment Options
The antifungal creams and suppositories available without a prescription work well for uncomplicated yeast infections. You have three main options, and the choice comes down to how long you want the treatment to last.
- Miconazole (Monistat) comes as a cream or suppository in 1-day, 3-day, and 7-day versions. You insert it vaginally using the included applicator, typically at bedtime.
- Tioconazole (Vagistat) is a single-dose ointment. One application and you’re done.
- Clotrimazole (Trivagizole) is a vaginal cream available in 3-day and 7-day versions.
All of these are effective. The shorter treatments use a higher concentration of the active ingredient, so they work in fewer applications but can sometimes cause more local irritation. The 7-day versions are gentler and are the only option recommended during pregnancy. Many people find the 3-day option a good middle ground.
You should start feeling better within a couple of days, though it can take the full course of treatment, or slightly longer, for symptoms to fully resolve. Finish the entire course even if you feel better early. Stopping short can allow the infection to bounce back.
Prescription Treatment
If you’d rather skip the creams, a single 150 mg oral dose of fluconazole (Diflucan) treats most uncomplicated yeast infections. You need a prescription for it. It’s convenient since it’s just one pill, though it can take a day or two longer than topical treatments to provide relief.
For severe infections with significant redness, swelling, or cracking, the approach changes. Providers typically recommend either 7 to 14 days of a topical antifungal or two oral doses of fluconazole spaced 72 hours apart. Severe symptoms need more aggressive treatment to fully resolve.
What Causes Yeast Infections
A small amount of Candida yeast lives in the vagina naturally, kept in check by beneficial bacteria. A yeast infection happens when something disrupts that balance and allows Candida to multiply. The most common triggers include:
- Antibiotics. They kill the harmful bacteria causing your illness, but they also wipe out beneficial vaginal bacteria that keep yeast under control. This is one of the most frequent causes.
- Hormonal changes. Pregnancy, hormonal birth control, and the normal shifts of your menstrual cycle can all change the vaginal environment enough to encourage yeast growth.
- Poorly managed diabetes. Elevated blood sugar creates conditions where yeast thrives.
- A weakened immune system. Conditions or medications that suppress immune function make it harder for your body to regulate yeast naturally.
Knowing your triggers matters, especially if infections keep coming back. If antibiotics are the culprit, you can talk to your provider about preventive strategies for future courses.
Preventing Recurrence
Some practical habits reduce your risk. Wear breathable cotton underwear and avoid sitting in wet swimsuits or sweaty workout clothes. Skip scented soaps, douches, and sprays in the vaginal area, as these disrupt the natural bacterial balance. Wipe front to back after using the bathroom.
Probiotics have gained attention as a prevention tool. A large trial of 348 women tested two specific probiotic strains (Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14) taken orally for 28 days. Over 90% of participants reported improvement in their symptoms, with no adverse effects. While probiotics aren’t a replacement for antifungal treatment during an active infection, they may help maintain a healthier vaginal environment over time.
Dealing With Recurrent Infections
If you’re getting four or more yeast infections a year, you have what’s classified as recurrent vulvovaginal candidiasis, and the standard short-course treatments aren’t enough on their own. The typical approach involves two phases: first clearing the current infection with a longer initial course (7 to 14 days of topical treatment, or three oral doses of fluconazole spread over a week on days 1, 4, and 7), then starting a maintenance regimen of oral fluconazole once weekly for six months.
This extended approach works well for most people. The goal is to suppress yeast long enough for the vaginal environment to stabilize.
Some recurrent infections are caused by less common yeast species that don’t respond well to standard antifungals. For these, boric acid vaginal suppositories are an effective alternative. Treatment involves inserting one capsule vaginally each night for two to three weeks. UW Medicine notes boric acid is particularly useful against atypical species like Candida glabrata and Candida tropicalis. Boric acid should only be used vaginally and never taken orally, as it’s toxic if swallowed.
Pregnancy and Yeast Infections
Yeast infections are more common during pregnancy due to hormonal shifts. The treatment options narrow considerably: only topical antifungal creams and suppositories are recommended, applied for a full 7 days. Oral fluconazole is not recommended during pregnancy. If you’re pregnant and suspect a yeast infection, confirm the diagnosis with your provider before starting any treatment, even an over-the-counter one.