clostridial infection
"My mother in law had cdiff for 10 months. Flagyl and vancomycin were given repeatedly with cdiff returning after a day or two. I found difficid after doing some research on line. Took the doctors 2 months to agree to prescribe it.  She took the difficid for 10 days and has been clear of cdiff for a month and has been able to resume her chemo treatments."