If a baby is experiencing coughing and you are unsure if it is whooping cough or laryngitis, it is recommended to seek medical advice from a doctor. Whooping cough typically sounds like a rooster crowing, while laryngitis is characterized by a dry cough resembling a barking dog. If the baby is having difficulty breathing, a high fever, or if the cough persists for more than a week, it is important to consult a healthcare professional. Avoid giving syrup or honey to infants under one year old, and focus on nasal hygiene, providing frequent drinks, and elevating the head of the bed to help with nighttime coughing.