Most yeast infections clear up within a few days of starting treatment, and many can be treated with products you can pick up at any pharmacy without a prescription. Short-course antifungal creams or suppositories, used for one to seven days, effectively cure the majority of uncomplicated vaginal yeast infections. Here’s what works, what to skip, and how to keep infections from coming back.
Make Sure It’s Actually a Yeast Infection
Before you treat anything, it helps to know what you’re dealing with. Yeast infections, bacterial vaginosis (BV), and other vaginal infections share some overlapping symptoms like irritation and unusual discharge, but they require completely different treatments. Using antifungal medication for something that isn’t a yeast infection won’t help and can delay the right treatment.
Yeast infection discharge is typically thick, white, and odorless, sometimes described as looking like cottage cheese. You may also notice a white coating in and around the vagina, along with intense itching, swelling, and burning during urination or sex. BV, by contrast, produces grayish, foamy discharge with a noticeable fishy smell. If your discharge is yellow-green, frothy, or foul-smelling, you’re likely dealing with something other than yeast.
If this is your first infection, or if your symptoms don’t match the classic pattern, getting a proper diagnosis matters. A clinician can confirm yeast under a microscope in minutes.
Over-the-Counter Treatments
For a straightforward yeast infection, antifungal creams and suppositories sold without a prescription are the standard first step. The two most common active ingredients are clotrimazole and miconazole, and both are equally effective. You’ll find them in several formats:
- 1-day treatments: A single high-dose suppository (miconazole 1,200 mg) or a one-time ointment application (tioconazole 6.5%). These deliver a concentrated dose all at once.
- 3-day treatments: A cream or suppository used nightly for three consecutive nights. Miconazole and clotrimazole both come in 3-day versions.
- 7-day treatments: A lower-concentration cream applied nightly for a full week. These tend to cause less local irritation and are often recommended for sensitive skin or mild infections.
All of these formats have similar cure rates. The 1-day and 3-day options are more convenient, but the medication doesn’t actually leave your body faster. The drug stays active in vaginal tissue for several days after your last application. Regardless of which format you choose, most people notice symptom relief within two to three days, though it can take up to a full week for everything to resolve completely. More severe infections may take longer.
Prescription Options
If you’d rather skip the creams, a single oral dose of fluconazole (150 mg) is the most commonly prescribed alternative. It works systemically, meaning you swallow a pill and it reaches the infection through your bloodstream. Many people find this more convenient than topical treatments, and it’s just as effective for uncomplicated infections.
There are also prescription-only vaginal creams and suppositories (such as terconazole) that your provider may recommend if over-the-counter options haven’t worked. For infections caused by less common yeast strains that don’t respond to standard antifungals, a newer class of medication works by breaking down a key structural component of the fungal cell wall rather than targeting the same pathway as traditional treatments. This gives providers an alternative when the usual drugs fall short.
What About Boric Acid?
Boric acid vaginal suppositories (600 mg, used daily for 14 days) are considered a safe and effective alternative for yeast infections that resist standard antifungal treatment, particularly those caused by non-albicans yeast strains. Multiple international clinical guidelines endorse this approach as a second-line option. Boric acid is not a first-line treatment for a typical yeast infection, but if you’ve tried antifungal creams or fluconazole and the infection keeps coming back or won’t clear, it’s worth discussing with your provider.
Boric acid suppositories are inserted vaginally, never taken by mouth. Oral ingestion is toxic.
Home Remedies to Avoid
The internet is full of suggestions for treating yeast infections with tea tree oil, garlic, hydrogen peroxide, apple cider vinegar, or yogurt. These remedies are not well studied, and some carry real risks. Douching with vinegar or antiseptics causes vaginal inflammation, kills beneficial bacteria, and can actually increase your risk of infection. Tea tree oil is irritating to mucosal tissue and has no reliable clinical data supporting its use for vaginal yeast. Inserting garlic cloves can cause chemical burns.
The vagina maintains its own ecosystem of protective bacteria. Introducing household substances disrupts that balance and often makes the situation worse.
Treating Yeast Infections During Pregnancy
Yeast infections are more common during pregnancy due to hormonal shifts that change vaginal chemistry. Topical antifungal creams and suppositories (the same ones sold over the counter) are considered safe throughout pregnancy and are the preferred first-line treatment. The 7-day regimens are typically recommended over shorter courses during pregnancy.
Oral antifungals are a different story. Fluconazole taken in the first trimester has been associated with skeletal abnormalities in the developing fetus, and high-dose oral antifungals carry enough documented risk that they’re classified as dangerous during pregnancy. If you’re pregnant and dealing with a yeast infection, stick with topical treatments and let your provider know.
When Infections Keep Coming Back
If you get four or more yeast infections in a single year, that’s classified as recurrent vulvovaginal candidiasis. This affects a meaningful number of people and typically requires a different approach than one-and-done treatment. The standard strategy involves first clearing the active infection, then using a long-term maintenance regimen of periodic antifungal doses to suppress future episodes. This maintenance phase can last several months.
Recurrent infections sometimes signal an underlying issue. Uncontrolled blood sugar is one of the strongest risk factors, because yeast thrives on glucose. There’s evidence that high sugar intake can exacerbate vaginal yeast infections even in people without diabetes. Frequent antibiotic use is another common trigger, since antibiotics kill the protective lactobacillus bacteria that normally keep yeast populations in check.
Reducing Your Risk
You can’t prevent every yeast infection, but a few habits lower the odds. Yeast grows best in warm, moist environments, so wearing breathable cotton underwear, changing out of wet swimsuits or sweaty workout clothes promptly, and avoiding tight synthetic fabrics in the groin area all help. Avoid scented soaps, sprays, or wipes in the vaginal area, as these disrupt the natural bacterial balance.
Probiotics containing specific lactobacillus strains have shown some promise for reducing yeast colonization, particularly when delivered vaginally rather than orally. Clinical trials have tested vaginal probiotic tablets used nightly during an acute infection, then tapered to a maintenance schedule, with the goal of restoring protective bacteria long-term. The evidence is still developing, but the approach is biologically sound: healthy lactobacillus populations produce acid and other compounds that make the vaginal environment inhospitable to yeast.
If you’re prone to recurrent infections, keeping a simple log of when they occur and what preceded them (antibiotics, your menstrual cycle, dietary changes) can help you and your provider identify patterns and tailor a prevention strategy.