Nasal congestion and fever in babies are generally considered to be caused by upper respiratory tract infections, which can be treated by general treatment, physical therapy and medication. 1. General treatment: first of all, you need to let the child drink more warm water, strengthen the care and warmth, to avoid being cold, and try to take light and easy to digest food as the main diet. 2. Physical therapy: you can use warm water to wipe the forehead, armpits, groin and other capillary-rich parts, can play a physical cooling effect. 3. medication: upper respiratory tract infections are mostly caused by viral infections, no specific drug treatment, to support the symptomatic treatment, can be taken orally under the guidance of a physician to improve the symptoms of pediatric aminophenol xuanamin granules, body temperature greater than 38.5 ℃ or more, can be combined with oral ibuprofen antipyretic. The above is the basic treatment, if the condition is not relieved, need to consult a doctor. The above drugs should be used under the guidance of a doctor.