Traveling in greece. had fever 102+, stomach cramps, diarrhea for 4-5 days. got better after 7-10 days. then ate heavy meal, and everything came back. fever 102+, cramps, explosive diarrhea. finished ab rifaximin. still have explosive diarrhea. next?

The two primary causes of diarrhea while traveling are bacteria (which would have been susceptible to Rifaximin) or Giardia which requires a different mediction called metronidazole. Either one is caused by ingestion of fecal contaminants due to either food contamination during preparation or by eating with unwashed hands. See a Dr for a prescription. Wash hands frequently.