Most cases of vaginal thrush clear up within a few days using antifungal treatments available over the counter at any pharmacy. For a straightforward, first-time yeast infection, you can often start treatment at home without a prescription. If symptoms keep coming back, or if you’re not sure what you’re dealing with, a different approach may be needed.
Over-the-Counter Antifungal Treatments
The most common first step is a vaginal antifungal cream or suppository containing clotrimazole or miconazole. These come in different course lengths: one-day, three-day, and seven-day options. The cream is typically inserted into the vagina once a day at bedtime. Shorter courses use a higher concentration of the active ingredient, so a one-day treatment isn’t necessarily weaker; it just delivers more in a single dose.
Many products also include an external cream for the vulva, which helps with itching and irritation on the outside. If your main symptom is intense external itching, using both the internal and external cream together provides faster relief. You should notice improvement within two to three days, though it’s important to finish the full course even if symptoms fade early. Stopping partway through can leave enough yeast behind to trigger a rebound.
Seven-day treatments tend to be gentler and are often recommended if you’ve had irritation from shorter courses in the past. They’re also the preferred option during pregnancy, since the oral antifungal pill is not considered safe for use while pregnant.
The Single-Dose Pill
For uncomplicated thrush, a single 150 mg oral antifungal tablet (fluconazole) is the other standard treatment. It works systemically, meaning it travels through your bloodstream to reach the infection rather than being applied directly. Most women find this more convenient than a multi-day cream regimen.
The pill typically starts relieving symptoms within 24 hours, with full resolution in two to three days. It’s available by prescription in most countries, though some pharmacies offer it after a consultation with the pharmacist. One thing to keep in mind: fluconazole can interact with certain medications, including some blood thinners and cholesterol drugs, so mention anything you’re taking when you pick it up.
Make Sure It’s Actually Thrush
Before you treat, it’s worth confirming what you’re dealing with. Thrush and bacterial vaginosis (BV) share some overlapping symptoms, like unusual discharge and discomfort, but they require completely different treatments. Antifungals won’t help BV, and BV treatments won’t touch a yeast infection.
The easiest way to tell them apart is by the discharge. Thrush produces thick, white discharge with a cottage cheese-like texture and typically no strong odor. BV causes thin, grayish or yellowish discharge with a noticeable fishy smell. If your symptoms don’t match the classic thrush pattern, or if an over-the-counter treatment doesn’t work within a few days, it’s worth getting a swab test to confirm the diagnosis.
When Thrush Keeps Coming Back
Recurrent thrush is defined as three or more symptomatic episodes within a single year, and it affects a significant number of women. If this sounds familiar, over-the-counter treatments alone usually aren’t enough to break the cycle.
The standard approach for recurrent infections is a longer initial treatment course followed by a maintenance phase. This typically involves taking oral fluconazole at regular intervals, often weekly, over a period of several months. The goal is to suppress the yeast long enough for the vaginal environment to stabilize. Many women stay symptom-free during maintenance, though some experience a return of infections after stopping. Your doctor can tailor the schedule based on how you respond.
Recurrent thrush can also signal that a less common yeast species is involved. The standard treatments target Candida albicans, which causes the majority of infections. But species like Candida glabrata are naturally more resistant to typical antifungals. If you’ve been treating repeatedly without lasting results, a lab culture can identify the specific species and guide more targeted treatment.
Boric Acid for Stubborn Infections
For recurrent infections or those caused by atypical yeast species, boric acid vaginal suppositories are an effective alternative. UW Medicine describes boric acid as “an excellent therapy” for these harder-to-treat cases. The typical protocol is one capsule inserted vaginally each night at bedtime for two weeks.
Boric acid capsules are available pre-made at many pharmacies, or you can fill size “0” gelatin capsules with boric acid powder (not crystals) yourself. This is a vaginal-only treatment. Boric acid is toxic if swallowed, so capsules should be stored safely away from children and clearly labeled. It’s also not recommended during pregnancy.
What About Probiotics?
Probiotics containing Lactobacillus strains have gained popularity as a natural option for preventing yeast infections. The theory makes sense: Lactobacillus bacteria are the dominant species in a healthy vagina, and they help maintain the acidic environment that keeps yeast in check. Lab studies show these bacteria can reduce harmful microorganisms and support vaginal balance.
The clinical evidence, however, hasn’t caught up with the theory. While probiotics show promising results for bacterial vaginosis, the data for thrush specifically remains insufficient to recommend them as a standalone treatment or prevention strategy. They’re unlikely to cause harm, but they shouldn’t replace proven antifungal treatment for an active infection.
Habits That Lower Your Risk
Yeast thrives in warm, moist environments, so many prevention strategies focus on keeping the vaginal area cool and dry. The CDC recommends wearing cotton underwear and breathable, loosely fitting clothing. Sitting in a wet swimsuit or sweaty workout clothes for extended periods creates the kind of environment yeast loves.
A few other practical steps help reduce risk. Avoid scented soaps, bubble baths, and vaginal douches, all of which can disrupt the natural balance of bacteria and yeast. When washing, plain water or a mild, unscented cleanser on the external area is sufficient. Antibiotics are one of the most common triggers for thrush because they kill protective bacteria along with the targeted infection. If you’re prone to yeast infections after a course of antibiotics, your doctor may recommend using a preventive antifungal dose alongside them.
High blood sugar also promotes yeast growth. Women with poorly controlled diabetes are at higher risk for recurrent infections, and getting blood sugar levels under better control often reduces thrush episodes as well.