Make sure you dry yourself very thoroughly after bathing and showering to prevent yeast infections. Yeast thrive in moist environments, including folds of skin found almost anywhere on the body. Gently pat the skin dry with an absorbent towel, and then apply body powder to these areas to absorb even more moisture.
Check the deodorant that you are using if you continually get yeast infections as the year progresses. Deodorants can have chemicals in them that may impact the formation of fungus on and in your body. Switch deodorants or go to your doctor for a prescription grade deodorant if you feel this may be the culprit.