For a traveler with diarrhea after visiting Mexico, in addition to promoting fluid intake, which treatment is recommended?

• A. Kaolin-pectin
• B. Ciprofloxacin
• C. Simethicone
• D. Doxycycline

Answer: (B)

When travelers’ diarrhea is present, rehydration and electrolyte replacement are essential, and antibiotics are used for moderate to severe cases or when quick recovery is desired. A short course of a fluoroquinolone such as ciprofloxacin is a common choice for adults traveling to regions like Mexico because it targets the typical bacterial pathogens causing travel-related diarrhea and can shorten the illness. Other options don’t address the infection: kaolin-pectin is an old adsorbent with limited proven benefit for acute infectious diarrhea; simethicone helps gas but doesn’t treat the infection; doxycycline isn’t used for traveler's diarrhea. So, adding ciprofloxacin alongside fluids best fits the goal of quick symptom relief and infection control.