I have treated (what I think, but never officially diagnosed) several yeast infections OTC and these past few months, it has come back more frequently. I am married, but my husband cheats with his ex on a regular basis - but I am also overweight (more prone to yeast inf.) so without getting an exam and culture, I don t know what it could be. I ve also noticed along with it frequent, clear discharge (much more than normal) and sometimes foul odor. So u think it could be an STD or an agressive, advanced yeast infection?