I'm no doc (although I WISH I were...) but if you do have a yeast infection...your immunity is down...from what I've heard. So I jumped to conlusions thinking Kandee's immunity must be great if she's never had a yeast infection. But...you know how they say two wrongs don't make a right...I guess just because you've never had a YI it doesn't mean you have good immunity. But I think it's GREAT if you've never had a yeast infection.....I hope you NEVER do!