A baby’s cough with thick white tongue coating indicates that the child has cold dampness or damp heat in the body, which is related to poor spleen and stomach transportation and unfavorable lung qi. For the causes of poor spleen and stomach transportation and unfavorable lung qi in children, it is related to unreasonable feeding or unreasonable care in general. Cough is one of the common symptoms of respiratory diseases. If cough occurs, first consider acute tonsillitis, bronchitis and pneumonia, make a comprehensive diagnosis according to the accompanying symptoms and give the corresponding treatment methods in time. If you usually eat too much cold food, it will easily lead to deficiency of cold in the spleen and stomach, and the spleen and stomach will not be able to transport and transform properly, which will affect the function of the lung qi and lead to upward rebellion of the lung qi and cause coughing, or if you do not pay attention to your diet and eat too much and too miscellaneous food, which causes excessive cold and dampness and phlegm and dampness in the body and coughing symptoms.