Autumn and winter are the most frequent seasons for children’s colds. Children’s colds are common diseases of the respiratory system, and cough is the most common manifestation of respiratory diseases, and regular cold and cough is a manifestation of poor immunity of the organism. Cough can be divided into irritating dry cough and cough with a lot of phlegm. Early symptoms are mostly dry cough with initial damage to the airway mucosa, which should be properly reduced to stimulate the airway mucosa for the purpose of cough relief, and you can drink more water or warm beverages and keep the room air moist. In a cough with a lot of phlegm, the accumulation of phlegm in the airway can cause airway obstruction and affect ventilation. Coughing can expel phlegm to keep the airway open. You can take appropriate phlegm-forming medications for phlegm, or you can nebulize to promote phlegm discharge and reduce cough symptoms. You should also pay attention to the general care of your child in daily life: 1. Don’t overdress your child, and add or remove clothes promptly when the temperature changes or when it is warm or cold. 2. Control your child’s diet, eat regularly and in moderation, don’t eat too many snacks, have balanced nutrition, and don’t over-eat to cause food accumulation. 3, pay attention to the clean living environment, more outdoor sports with children, more sunshine, in order to enhance physical fitness, improve the child’s immunity. Children’s resistance is poor, the high season of colds should pay attention to prevention, do not go to crowded public places, after the cold to actively treat, as the child grows up, the resistance increases, the number of coughs and colds will gradually reduce.