Mary, here's another thought for you.  Sometimes a yeast infection can be
passed back and forth between husband and wife during sexual relations.
The male often has no (or fewer) symptoms, since he doesn't offer as good
a breeding ground as the woman does.  You could try treating your husband
too and see if that helps.  The book I'm getting this from is Herbs and
Health Care for Males by James Green, and he uses herbal soaks as a
treatment for this, but I'm sure you could figure out something else that
could work too.

Becky Williams