Yeast infections following new sex partner. More evidence links weight gain to meal times. I had a Recurring Yeast Infection. To avoid infection, do not drink water from rivers and streams. Doctors most often treat RVVC with antifungal medicine for up to six months. Women and girls of all ages can get vaginal yeast infections. Drugs, creams and typical Yeast Infection treatments sometimes work in a partial way and temporarily and the side effects are nasty. It also can be spread from mother to child. Most people don't have symptoms.