Hello and welcome to the TTC board.
Are you on antibiotics? if so it is recommended that you eat yogurt containing acidophillus or take acidophillus tablets as it replaces the good bacteria which is being destroyed by the antibiotics. The sperm need a hostile enviroment to travel in and when taking antibiotics it destroys this enviroment.
I would have thought that if you have a yeast infection and you start to eat the acidophillus yogurt or take the tablets it may help combat the infection before it gets to bad as you are ingesting good bacteria.
I hope this is of some help
Sprinklings of baby dust to you and good luck