Yeast infections cannot always be prevented but women can reduce the likelihood of developing them by avoiding risk factors involving clothing and personal hygiene. Additionally, women with recurrent yeast infections may choose to take boric acid capsules or eat yogurt with lactobacillus acidophilus cultures daily. Yeast infections are especially itchy, crusty, and smelly. Yeast infections in the vagina or anus can be treated with medicated suppositories. Thrush may be treated with a medicated mouthwash or lozenges that dissolve in the mouth. Yeast infections are treated with a pill that you swallow or with a vaginal cream or vaginal suppository a partially solid material that you insert into your vagina, where it dissolves and releases medicine. Yeast infections are more common during pregnancy than any other time in a woman\'s life, especially during the second trimester of pregnancy. You may be noticing an increase in the amount of thin, white, odd smelling discharge. Yeast infections are not usually sexually transmitted. Yeast infections are so common that three out of four women will have one at some time in their lives. One half of all women have more than one infection in their lives. Yeast infections are also more likely to develop if the immune system is weakened—suppressed by drugs such as corticosteroids or chemotherapy drugs or impaired by a disorder such as AIDS.