Yeast infections, known scientifically as candidiasis, are extremely common among women: studies show that as many as 75% of all women will experience a yeast infection at least once in their lives. This condition occurs when candida, a fungus that is normally present in healthy women, develops an overgrowth, usually due to an imbalance in the body’s acidity levels. Though uncomfortable and unpleasant, yeast infections are seldom life-threatening.

Yeast infections can be triggered by certain medications and lifestyle behaviors. Women taking antibiotics to fight off a bacterial infection are often prone to yeast infections because the medicine can disrupt the balance of yeast and healthy bacteria in the vagina. Tight, non-breathable clothing, wet bathing suits, and douching can also create a yeast infection-prone environment.

The most common symptoms of yeast infections are vaginal itching, irritation, or soreness; pain or burning during intercourse or urination; a heavier-than-usual discharge with a cottage cheese-like texture; and rash or redness. If you experience any of these symptoms, see a doctor. Many women incorrectly self-diagnose and self-treat yeast infections, which can make the existing condition worse. There are many illnesses that produce similar symptoms, so leave it to a doctor to give you the proper diagnosis and treatment.

Yeast infections can be treated either orally or topically, using creams or vaginal suppositories. Oral medications are available only by prescription, but topical treatments can be purchased over the counter and many offer the added benefit of immediate relief of itching or burning. However, some women find that these treatments can lead to increased discharge, or “leakage.” To reduce this side effect, use topical treatments at night right before going to bed, and wear panty liners to protect your clothing.