Some people have posted here looking for something to keep their underwear clean during light incontinence, or if they are using greasy ointments and creams.

I haven't tried this, but it looks good:
http://www.amazon.com/gp/product/B00MT5 ... 0_70668520

It's supposed to be good for men and women.
If you try it, please post a reply to tell us if it is any good.