Mild Yeast Infections heal up and go away on their own within 3 to 4 days but more severe cases of yeast infections can last as long as two weeks.
You can fill a bathtub up with warm water and mix in about one cup of white vinegar or apple cider vinegar to the bath and soak in the bath water for up to 30 minutes and the vinegar or apple cider vinegar will kill off the bacteria causing the yeast infection.