Infants and young children have poor defenses and immature lung development, so they have the highest incidence within 2 years of age, most often following upper respiratory infections and acute infectious diseases, and most often in winter and spring. Chronic cough, sputum and wheezing in winter and spring have an acute or delayed onset, and most of them are preceded by a mild upper respiratory tract infection. However, the cause of onset is determined by the specific clinical presentation. In addition to a detailed medical history and symptoms, what aspects of the diet of chronic cough, sputum and wheezing in winter and spring should be noted? 1. Forbidden to eat cold food Chinese medicine believes that “cold form and cold drinks hurt the lungs”, which means that once the body is cold, drinking cold products can hurt the human lungs, and coughs are mostly caused by lung disorders that cause the lung gas not to be declared and the lung gas to be reversed. At this time, if the diet is still too cold, the lung qi will easily become occluded and the symptoms will deepen and remain untreated for a long time. In both children and adults, coughs are often accompanied by phlegm, and the amount of phlegm is related to the spleen. The spleen is the backbone of the body and is responsible for the digestion and absorption of food. If you eat too much cold food, you will hurt your spleen and stomach, causing the spleen’s function to decline and gathering moisture to produce phlegm. 2, forbidden to eat fatty, sweet and thick food cough is mostly caused by lung heat, especially in children. In the daily diet, eating fatty and sweet foods can generate internal heat and deepen the cough, and the phlegm is sticky and not easy to cough up. Excessive consumption of fatty and sweet foods can cause phlegm and heat to build up in each other, blocking the respiratory tract, deepening asthma and making it difficult to heal. Therefore, you should eat some light food during the coughing period. 3, no seafood food allergic reaction is one of the causes of chronic bronchitis, and fish, shrimp, salmon, yellowtail, scallop, anchovy, crab and poultry eggs, fresh milk or dairy products are common allergens. Therefore, patients with chronic bronchitis, should avoid eating such foods.