MRCP2-2728

A 30-year-old woman comes back from a vacation in Thailand and presents with diarrhea. She has no medical history and is not taking any regular medication except for the oral contraceptive pill. She has a peanut allergy but no other allergies. The patient has been experiencing diarrhea for three days with mild abdominal cramps that started five days after returning from her trip. There is a small amount of blood in her stool. Her vital signs are normal, and she does not have any postural symptoms. Stool samples are sent to the microbiology lab for analysis. What is the most appropriate treatment?