If your baby has yellow snot or yellow sputum, it indicates wind-heat cold. When coughing, you can use wind-heat cold medicine, such as pediatric cold granules, Anerin or pediatric cold nin combination, etc. At the same time, you should pay attention to sufficient fluid intake, feed warm boiled water or breast milk regularly, or eat more thin soup or thin noodle-type food in your diet to ensure fluid intake. If the nasal discharge is thick and sticky and not easily discharged, you can wash your face and nose with warm water or spray your nose with physiological sea salt water spray to dilute the sticky secretions in the nose and ensure that the nasal cavity is in a relatively clear state. If the cough is not obvious, cough suppressant treatment is usually not given for the cough, but mainly for phlegm and expectoration. When the phlegm is more abundant, in addition to the medicine for wind-heat and cold, it can also be treated with the oral solution of Ambroxol Hydrochloride to dissolve the phlegm.