Re: Bubble baths -> yeast infections?
Soaps and anything that foams like bubble bath are alkali. The natural condition of a healthy vagina is acidic, which is not a good place for organisms that cause infections. If you are one of the 10% of women who take in water into their vaginas when they sit in a bathtub (I got this percentage number from a gyno a few years ago), then you are taking in water that will change the acidity of your vaginal tissues. This will create a perfect breeding ground for organisms that prefer alkali conditions.
While growing up in a household that had a bathtub but no shower, I had frequent vaginal infections. After I switched to 100% cotton undies and started taking showers (and never again sitting in a bathtub or swimming pool or sauna), I stopped having vaginal infections.
Sometimes I am wistful when I think of women who sit in a hot bubble bath with candlelight and relaxing music. Sigh. But I wouldn't be able to relax knowing that I was going to have a vaginal infection shortly afterwards.