A yeast infection typically produces a mild, bread-like or slightly sour smell, not a strong or fishy odor. If the smell is what’s bothering you most, treating the underlying infection is the fastest way to resolve it. Once the yeast overgrowth clears, the odor goes with it. But if the smell is distinctly fishy or pungent, you may be dealing with a different condition entirely.
What a Yeast Infection Actually Smells Like
Yeast infections produce a faint, yeasty scent that some people compare to sourdough bread. It’s subtle enough that many people don’t notice it at all. The more prominent symptoms are thick, white discharge (often described as cottage cheese-like), itching, burning, and irritation around the vulva.
A strong fishy smell, especially one that gets worse after sex, is the hallmark of bacterial vaginosis (BV), not a yeast infection. Trichomoniasis, a sexually transmitted infection, can also cause a fishy or musty odor. These conditions require different treatments than a yeast infection. If you’re dealing with a noticeable fishy smell, it’s worth getting tested rather than self-treating for yeast, because antifungal medications won’t help BV or trichomoniasis. A vaginal pH of 4.5 or above can indicate BV, and your provider can test this in the office.
Treat the Infection to Eliminate the Odor
The smell won’t go away on its own because it’s a byproduct of the fungal overgrowth. Clearing the infection is the only reliable fix. You have two main options: over-the-counter antifungal products and prescription medication.
Over-the-counter treatments contain miconazole (sold as Monistat), which comes in several formats. A single-dose vaginal suppository is the quickest option. A three-day suppository regimen is also available, and a seven-day vaginal cream is typically used for milder symptoms or if you prefer a lower daily dose. External cream can be applied to the vulva for itching and irritation while the internal treatment works.
If you’d rather skip the topical route, a single oral dose of a prescription antifungal is the standard alternative. You’ll need to see a provider to get it. This is also the better choice if you’ve tried OTC treatments before without success, or if you aren’t fully sure the problem is yeast. Misidentifying BV as a yeast infection is common, and using the wrong treatment delays relief.
What Not to Do
Douching is the most common mistake people make when trying to address vaginal odor. It feels intuitive, but it backfires. Douching disrupts the natural balance of bacteria in the vagina and can actually cause yeast infections or bacterial vaginosis. If you already have an infection, douching can push the harmful organisms deeper into the reproductive tract, potentially leading to pelvic inflammatory disease. The U.S. Office on Women’s Health is direct on this point: douching only covers up odor briefly and makes the underlying problem worse.
Scented soaps, vaginal deodorants, and fragranced wipes also disrupt vaginal pH and flora. The vagina is self-cleaning. Warm water on the external area is all you need for daily hygiene.
Habits That Speed Recovery and Prevent Recurrence
What you wear matters more than you’d think. Cotton underwear wicks away moisture that yeast thrives on. A synthetic fabric with a small cotton crotch panel doesn’t offer the same protection, so look for 100% cotton. If you have sensitive skin, plain white cotton is the safest bet since dyes can cause additional irritation. Change your underwear daily, and swap them out sooner if they get damp from sweat or discharge.
Going without underwear at night helps too. Loose pajamas or boxer shorts increase airflow to the area and promote healing, which is especially useful during an active infection. Avoid panty liners unless you truly need them, since they reduce breathability and can trap moisture against the skin.
Wash new underwear before wearing them to remove chemicals from manufacturing and shipping. Use a fragrance-free, hypoallergenic detergent, and consider running your underwear through the rinse cycle twice if you’re prone to irritation.
Boric Acid for Stubborn Cases
Boric acid vaginal suppositories can help restore the acid balance in the vagina and relieve yeast infection symptoms including itching, burning, and odor. They’re available over the counter and are typically used at bedtime. Boric acid is not a first-line treatment for a straightforward yeast infection, but it can be useful when standard antifungals haven’t fully resolved symptoms or when infections keep coming back.
A few important precautions: boric acid is only for vaginal use and is toxic if swallowed. Avoid sex during treatment, as it can reduce the effectiveness of condoms and diaphragms. Don’t use tampons while using the suppositories. If symptoms don’t improve within a few days, follow up with your provider. Boric acid is not safe during pregnancy.
Probiotics as a Supporting Strategy
Probiotics containing Lactobacillus strains, particularly L. acidophilus and L. rhamnosus, may help restore the balance of healthy bacteria in the vagina when used alongside antifungal treatment. Research has looked at both oral probiotic capsules and vaginal probiotic capsules used in combination with standard antifungals. Probiotics aren’t a replacement for antifungal treatment, but they may help the vaginal environment recover faster and reduce the chance of the infection returning.
When the Smell Keeps Coming Back
Four or more confirmed yeast infections in a 12-month period qualifies as recurrent vulvovaginal candidiasis. At that point, a provider will likely recommend a longer or maintenance treatment plan rather than the standard one-time approach. Recurrent infections are more common in people with diabetes, immune system conditions, or who are taking certain medications.
If you’re treating what you think is a yeast infection but the odor persists or changes character, that’s a strong signal to get tested. A fishy smell after treatment likely means the original diagnosis was wrong. Your provider can do a quick exam and pH test to distinguish between yeast, BV, and other infections, and get you on the right treatment.