If you have a yeast infection, what you avoid doing matters almost as much as the treatment itself. Many common instincts, like scrubbing the area clean, trying a home remedy, or grabbing an over-the-counter treatment without confirming the diagnosis, can actually make symptoms worse or drag out the infection. Here’s what to steer clear of while you’re dealing with one.
Don’t Assume It’s Actually a Yeast Infection
This is the most consequential mistake on the list. Studies show that even women who’ve had a yeast infection before correctly identify one only about 69% of the time. The three most common vaginal infections, bacterial vaginosis (BV), yeast infections, and trichomoniasis, share overlapping symptoms like itching, unusual discharge, and irritation. If you self-treat for yeast when you actually have BV or an STI, you’re delaying effective treatment and potentially letting the real problem get worse.
If this is your first time experiencing these symptoms, or if your symptoms come back within two months of treatment, get tested rather than guessing. A simple swab at a clinic can tell you exactly what you’re dealing with.
Don’t Douche or Over-Clean the Area
The urge to clean aggressively when you’re itchy and uncomfortable makes sense, but douching is one of the worst things you can do. Your vagina maintains its own ecosystem of protective bacteria, primarily Lactobacillus species, that keep yeast in check. Douching disrupts that microbial balance, causes inflammation, and gives opportunistic organisms like Candida a chance to multiply further. One lab study found that certain vaginal products completely killed protective Lactobacillus bacteria within 24 hours of exposure.
The vagina is self-cleaning. During an active infection, wash only the external vulvar area with warm water. Skip anything with fragrance, sulfates, or antibacterial ingredients. Products containing compounds like formaldehyde releasers and artificial fragrances are known skin sensitizers that can worsen inflammation on already irritated tissue. Cumulative exposure to harsh ingredients can lead to chronic inflammatory problems that outlast the original infection.
Don’t Try Home Remedies
Vinegar, tea tree oil, baking soda, hydrogen peroxide, garlic, coconut oil: none of these are effective yeast infection treatments, and most carry real risks. Vinegar douches disrupt healthy bacteria and cause burning. Baking soda dries out already irritated skin and can worsen the infection if it reaches the vaginal canal. Hydrogen peroxide may kill some fungal overgrowth, but it also destroys the beneficial bacteria you need for recovery, leaving you more vulnerable afterward. As one Cleveland Clinic specialist put it, home remedies “not only don’t work, but they can also make your symptoms worse.”
The appeal of a natural fix is understandable, but irritated vaginal tissue is especially vulnerable to chemical burns and allergic reactions. Stick with proven antifungal treatments.
Don’t Overuse Over-the-Counter Antifungals
Over-the-counter antifungal creams and suppositories work well for straightforward yeast infections, but reaching for them repeatedly without a confirmed diagnosis is a problem. Using antifungals when you don’t actually have a yeast infection, or using them too frequently, contributes to drug resistance. Currently about 6% of Candida infections are resistant to fluconazole, the most commonly prescribed oral antifungal. For certain species, resistance rates are climbing into double digits.
The CDC emphasizes antifungal stewardship: using the right drug, at the right dose, for the right length of time. That means finishing the full course of treatment even if symptoms improve early, and not stockpiling leftover treatments for self-prescribing later. If you’re dealing with three or more infections in a year, that qualifies as recurrent vulvovaginal candidiasis and calls for clinical evaluation rather than another round of self-treatment.
Don’t Have Sex If It Worsens Symptoms
Yeast infections aren’t classified as sexually transmitted infections, but sexual activity during an active infection can make things worse. Inflamed, irritated tissue is more susceptible to micro-tears and pain, and friction can intensify itching and swelling. If sex is making your symptoms worse, stop until the infection clears.
There’s a practical concern with treatment too: many antifungal creams and suppositories can weaken latex condoms and diaphragms, reducing their effectiveness as contraception or STI protection. If you do have sex during treatment, check the product label and consider a non-latex barrier method.
Don’t Wear Tight or Synthetic Clothing
Yeast thrives in warm, moist environments. Synthetic fabrics like nylon and polyester absorb less sweat than cotton, trapping moisture against the skin and creating exactly the conditions Candida needs to proliferate. Research confirms that moisture retention, friction, and heat accumulation from tight or synthetic clothing can impair the body’s mucosal defenses and promote microbial imbalance.
While you’re dealing with an infection, switch to loose-fitting cotton underwear. Change out of sweaty workout clothes or wet swimsuits as quickly as possible. Sleeping without underwear can also help keep the area dry overnight.
Don’t Load Up on Sugar
There’s a direct, measurable relationship between blood sugar levels and Candida growth. Clinical studies show a positive correlation between blood glucose and the density of Candida colonies: as blood sugar goes up, so does yeast proliferation. Candida also becomes more virulent in high-glucose environments and adheres more readily to cells in people with elevated blood sugar. When blood glucose levels were brought down through treatment in diabetic patients, Candida counts dropped along with them.
You don’t need to follow an extreme elimination diet, but cutting back on sugary foods and refined carbohydrates during an active infection is a reasonable step. If you have diabetes, keeping your blood sugar well controlled is one of the most effective things you can do to prevent recurrent yeast infections.
Don’t Take Oral Antifungals During Pregnancy Without Guidance
Yeast infections are common during pregnancy, but your treatment options change. The FDA advises against oral fluconazole during pregnancy except for severe fungal infections, though a single standard dose (150 mg) has not been definitively linked to miscarriage or birth defects. The concern grows with higher doses: repeated use of 400 to 1,200 mg daily over many weeks has been associated with a pattern of birth defects affecting the head, face, bones, and heart in a small number of cases.
Topical antifungal creams are generally the preferred route during pregnancy. If you’re pregnant and think you have a yeast infection, get it confirmed and treated under medical supervision rather than self-treating with oral medications.