Quote Originally Posted by Alliez
Sadly this topic is all to close to my heart as well. From what I've read, washing machine water and dryer heat are not hot enough to reliably kill yeasties, and one should use a hot iron on the relevant portions of your underwear to assure that you are reinfecting yourself. I've not tried ironing the chamois on my bike shorts (yet) but I'm going to have to give it a try (unfortunately).
eek! I would hesitate to try that as spadex is quite meltable....

I have heard - note: I've never tried this on underwear or bike shorts so if you decided to try this test it out with something you can destroy!! - that you can kill yeast by putting your underwear in the microwave for a few seconds. Lycra might just melt if given this treatment though.