To many women, vaginal itching and discharge mean one thing only: a yeast infection. But many women who buy over-the-counter yeast medications don’t have a yeast infection at all -- and some who do may also had another infection. Antifungals (Monistat, Gyne-Lotrimin, Mycelex) clear up only yeast, not other conditions (all easily treated with prescription drugs), such as:
Trichomoniasis, a parasite transmitted through intercourse. You may have this STD if you notice changes in vaginal discharge, itching, and pain during urination and sex.
Chlamydia, another sexually transmitted disease. Untreated, it can lead to pelvic inflammatory disease and sometimes infertility. Some women have no symptoms but others notice abnormal discharge, painful periods, bleeding between periods, stomach pain plus fever, pain during sex, an itching or burning sensation, and painful urination.