If you have been experiencing diarrhea for more than 3 days while breastfeeding, it is important to stay hydrated and eat light foods like soups, broths, toast with butter, and eggs. Avoid heavy or overly sweet foods like red meat and undiluted fruit juices. It is safe to take Imodium while breastfeeding if you have no fever, nausea, or vomiting. If your symptoms do not improve after 7 days, it is recommended that you see a doctor for further evaluation.