Chronic cough, sputum, and wheezing in winter and spring have an acute or delayed onset, and most of them are preceded by mild upper respiratory tract infections. Infants and children have poor defenses and immature lung development, so the incidence is highest within 2 years of age, mostly secondary to upper respiratory tract infections and acute infectious diseases. 1. Avoid cold food: It is not advisable to eat cold drinks or frozen drinks when coughing. At this time, if the diet is too cold, it is easy to cause the lungs to be occluded, and the symptoms will worsen and not heal over time. 2. Avoid fatty, sweet and thick foods: Chinese medicine believes that coughs are mostly caused by lung heat, especially in children. In the daily diet, eating fatty and sweet foods can produce internal heat and aggravate the cough, and the phlegm is sticky and not easy to cough up. For children with asthma, excessive consumption of fatty and sweet foods can cause heat and phlegm to build up in each other, blocking the airways and aggravating asthma, making it difficult to heal. The child’s cough is weak gastrointestinal function, fried food can increase the gastrointestinal burden, and help moisture and heat, breeding phlegm, making it difficult to heal the cough. 3. Avoid fishy fish and shrimp and crabs: people generally know that coughs need to avoid “hairy things” and should not eat fish and shrimp, which have the greatest impact on “wind-heat coughs”. The cough is aggravated after the coughing child eats fishy food, which is related to the fishy taste stimulating the respiratory tract and allergy to the protein of fish and shrimp food. Children who are allergic to certain fish and eggs should be more careful, with chub and scallops having the greatest impact. 4, avoid sweet and sour food: acid food often converge phlegm, so that phlegm is not easy to cough up, which aggravates the condition and makes the cough difficult to heal. When the cough is severe, apples, bananas, oranges, grapes, etc. should not be eaten, eat sweet food will also help heat, so that the inflammation is not easy to heal. The folk have the habit of “stewing raw pears with rock sugar” to treat coughs, but this way of eating is inappropriate for the early stages of a cough. 5. Avoid eating oranges: Many people believe that oranges are cough relievers and phlegm reducers, so they let children with coughs eat more oranges. In fact, the orange peel does have the effect of relieving cough and resolving phlegm, but the orange flesh produces heat and phlegm. The average child can not eat orange meat only eat orange peel. 6, avoid eating peanuts, melon seeds, chocolate, etc.: these foods contain more fat, easy to breed phlegm after eating, making the cough worse. 7, avoid taking tonic: Some parents give their weak children some tonic, but the child should stop taking tonic when the cough is not healed, so as not to make the cough difficult to heal.