A one-week-old baby with a cough and fever needs to be taken to a pediatrician for routine blood tests and a chest X-ray to see if there is bronchitis or bronchopneumonia. If it is a bacterial infection, anti-inflammatory treatment with antibiotics is needed. It is important to feed your baby more water and urinate more often during the cough and fever, which is helpful for both cough and fever. If the fever exceeds 38.5 degrees, it needs to be treated with oral antipyretics, along with physical cooling by scrubbing the areas rich in large blood vessels, such as the forehead, armpits and groin, with warm water. During the coughing period, your baby should eat a liquid diet, keep it light and avoid oily and spicy foods. Pay attention to ventilation and keep the air in the room clean.