Yes, a 10-week old baby with a cold can be helped by using saline solution to clean the sinuses. This can prevent congestion and coughing caused by mucus. It is recommended to use a nasal aspirator as well. Taking the baby's temperature rectally is the most accurate method at this age. A temperature below 38 degrees Celsius is not considered a fever. Make sure to consult a healthcare professional if you have any further questions or concerns.
