Diarrhea in infants after getting cold is usually self-cleaning. The main reason why babies get cold diarrhea is because the gastrointestinal tract moves too fast after getting cold, thus causing diarrhea, usually the symptoms are not very serious, and after timely abdominal warmth, the diarrhea symptoms will be recovered on their own. It may also be due to the baby after the cold, the body’s resistance to decline, easy to lead to viral infections caused by diarrhea, and viral infections have a certain self-limiting, generally will be recovered on their own. Parents should pay attention to the care of infants after the cold diarrhea, let the baby drink some warm water, and can be hot compresses on the abdomen, help relieve the symptoms. However, if the diarrhea is more serious, it may lead to dehydration and electrolyte disorders, and the infant needs to be given oral rehydration salts, as well as antidiarrheal drugs, such as montelukast. If the diarrhea is severe after exposure to cold, the infant should consult a doctor and cooperate with him/her. The above medications should be used under medical supervision.