Most yeast infections clear up within a few days to a week with antifungal medication, either over-the-counter or prescription. The infection is caused by an overgrowth of a fungus called Candida that naturally lives in the vagina, and treatment works by stopping that fungus from building its cell walls or reproducing. Before you treat, though, it’s worth making sure you’re actually dealing with a yeast infection and not something else with similar symptoms.
Make Sure It’s Actually a Yeast Infection
Yeast infections and bacterial vaginosis are commonly confused, but they look and feel different. A yeast infection typically produces a thick, white, cottage cheese-like discharge with intense itching and burning, especially after intercourse. BV, by contrast, causes a thin, grayish discharge that’s heavier in volume and has a noticeable fishy odor, particularly after a period or sex. BV can cause irritation but rarely causes pain, while yeast infections often do.
Other conditions like contact dermatitis and some sexually transmitted infections can mimic yeast infection symptoms too. If this is your first time experiencing these symptoms, or if your symptoms don’t match the classic pattern, getting a proper diagnosis matters because the treatments for each condition are completely different. Using the wrong one won’t help and can make things worse.
Over-the-Counter Antifungal Treatments
For a straightforward yeast infection, antifungal creams and suppositories available at any pharmacy are the standard first step. These products contain antifungals (commonly miconazole or clotrimazole) that work by disrupting ergosterol, a key building block of the fungal cell wall. Without it, the Candida cells can’t maintain their structure and die off.
These treatments come in 1-day, 3-day, and 7-day courses. The shorter courses use a higher concentration of medication, not less of it, so they’re equally effective for most people. You insert the cream or suppository vaginally, usually at bedtime, and many kits include an external cream for itching and irritation around the vulva. Symptom relief often begins within a day or two, but finish the full course even if you feel better.
Prescription Options
If over-the-counter treatments haven’t worked or you prefer a pill, oral fluconazole is the most commonly prescribed option. It’s a single-dose pill that works systemically, targeting the same pathway in the fungal cell wall. Most people notice improvement within two to three days, with full resolution in about a week. More severe infections may take longer and sometimes require a second dose.
A newer prescription option, ibrexafungerp, works through an entirely different mechanism. Instead of targeting ergosterol production, it blocks a different enzyme involved in building the fungal cell wall. This makes it useful when standard antifungals don’t work. The dosing is two tablets taken twice in a single day, roughly 12 hours apart. It’s typically reserved for cases where azole-based treatments have failed or aren’t suitable.
Why Some Infections Don’t Respond
If your infection isn’t clearing up, there are a few possible explanations. The most common is that it wasn’t a yeast infection in the first place. But genuine resistance does happen. The Candida fungus can develop the ability to pump antifungal drugs out of its cells before they take effect, or it can alter the shape of the enzyme that antifungals target so the drug no longer binds properly. Some strains even produce extra copies of the target enzyme to overwhelm the medication.
Non-albicans species like Candida glabrata and Candida tropicalis are naturally less responsive to standard azole antifungals. If you’ve tried treatment and symptoms persist, your provider can culture the infection to identify the exact species and choose a more targeted approach.
Treating Recurrent Infections
Recurrent yeast infections, defined as three or more episodes in a single year, affect fewer than 5% of women but can be frustrating and disruptive. The standard approach is a longer maintenance regimen: weekly oral fluconazole for six months. This suppresses the Candida population enough to break the cycle of overgrowth.
Boric acid suppositories are another well-supported option, particularly for infections caused by atypical Candida species. UW Medicine describes the protocol as one capsule inserted vaginally each night for two weeks to treat an active infection, followed by twice-weekly use for 6 to 12 months to prevent recurrence. You can make the capsules yourself using boric acid powder (not crystals) packed into size “0” gelatin capsules. Boric acid is toxic if swallowed, so it’s strictly for vaginal use and should be kept away from children.
What Helps Prevent Yeast Infections
Candida thrives in warm, moist environments, so the simplest preventive measures target that reality. Wear breathable cotton underwear and change out of wet swimsuits or sweaty workout clothes promptly. Avoid douching, which disrupts the vaginal microbiome and clears out the protective bacteria that keep yeast in check.
Antibiotics are one of the most common triggers for yeast infections because they kill off Lactobacillus and other beneficial bacteria that normally compete with Candida for resources. If you’re prone to yeast infections after taking antibiotics, let your prescriber know so they can plan accordingly. Uncontrolled blood sugar also promotes Candida growth, so people with diabetes are at higher risk and benefit from keeping glucose levels well managed.
Scented soaps, bubble baths, and feminine sprays can irritate vaginal tissue and shift the local environment in favor of yeast. Washing the external area with plain water or a mild, unscented soap is enough. Tight-fitting pants and synthetic fabrics trap heat and moisture, creating the conditions Candida prefers, so looser clothing can make a difference if you’re dealing with frequent infections.
Recovery Timeline
With treatment, most yeast infections resolve in a few days to a week. Itching and burning usually improve within the first 24 to 48 hours, while discharge takes a bit longer to normalize. If symptoms haven’t improved after completing a full course of treatment, that’s a signal to get evaluated rather than start a second round of the same medication. A provider can test for resistant species, rule out other conditions, and adjust the treatment plan accordingly.