For a baby experiencing loose motions, the most critical step is to prevent dehydration. Please give Oral Rehydration Salts (ORS) or pediatric electrolyte solutions in small, frequent sips, and continue regular breast milk or formula feeding. Do not give any over-the-counter anti-diarrheal medicines or antibiotics, as they can be harmful to infants. It is highly recommended to consult a pediatrician immediately to determine the underlying cause and get the correct dosage of any necessary supplements, like zinc. Seek emergency care if you notice signs of severe dehydration, such as dry mouth, crying without tears, extreme lethargy, or blood in the stool.