"I returned from a trip to the Dominican Republic on January 27. I have had diarrhea since January 25. I took Imodium at first and consistently since yesterday without improvement. What should I do?"

In such a situation where diarrhea persists despite treatment, it is important to consult a doctor. The symptoms may require antibiotics to help alleviate the discomfort. It is recommended to seek medical attention if there is blood in the stool, fever, or if the diarrhea has lasted for a week without improvement.