Recurrent respiratory infections, including colds, coughs and even wheezing, are a sign of low immunity in children and can affect development in severe cases. There is no specific treatment in Western medicine, and repeated application of antibiotics can easily produce drug resistance and side effects, and cannot be cured. Chinese medicine believes that children’s internal organs are delicate, the shape of the body is not full of Qi, the fence is loose, the external function is poor, the resistance to disease is not strong, susceptible to external evil attack, the lung Division of respiration, and the main skin and hair, so the lung disease is the most common evidence. If the lungs and spleen of children are deficient, or if they are born with insufficient endowment, have a weak constitution, or if they are artificially fed, or if their diet is not regulated for a long time, or if they rarely see the wind and sun, or if they have less outdoor activities, their surface qi is weak, and their external guard function is not strong enough, they may be vulnerable to external evil attacks and develop. In short, the disease is located in the lung, but is closely related to the spleen and kidney. Diagnostic points 1. The age of onset is usually between 6 months and 6 years, especially in infants and children aged 1 to 3 years; 2. Old infections first heal, new infections return, upper respiratory tract infections up to 5-7 times a year, lower respiratory tract infections up to 2-3 times a year. The onset of the disease is characterized by a long duration, with each upper respiratory tract infection lasting more than 10 days and lower respiratory tract infection lasting more than 3 weeks, or the initial upper respiratory tract infection, which soon develops into a lower respiratory tract infection; 3. The usual blood count is normal or low, the serum immunoglobulin IgA is low, and the trace element zinc is deficient. Or there is hemoglobin reduction, decreased hemoglobin, mild to moderate anemia, chest X-ray in the absence of infection, there may be no abnormalities or there is an increase in the texture of both lungs deepened. Symptoms: recurrent colds, fatigue, low fever in the afternoon, spontaneous sweating and night sweating, fear of heat and wind, dull food and thin body. 2. Symptoms of deficiency of lung and spleen: recurrent colds and coughs, yellowish face, little food, thin stools, thin body, fatigue, lack of warmth in the limbs, excessive sweating when moving, yellow and soft hair, coughing, phlegm in the throat, palpitation and shortness of breath, pale tongue, white tongue coating, weak pulse; 3. Relaxation, spontaneous sweating and night sweating, restless sleep at night, unstable walking, or chicken chest and turtle back, late closure of fontanelle, standing, walking, teeth, hair, language, developmental delay, thin white coating, thin pulse. Precautions 1, air circulation, sunlight, fresh air, pay attention to environmental cleanliness; 2, appropriate outdoor activities, direct exposure to sunlight, improve the body’s ability to resist disease. 3, pay attention to dietary hygiene, nutrition should be reasonable, rich in protein, to ensure a variety of vitamin intake. Pay attention to cold and warmth, dress should not be too hot, but also to prevent cold, pay attention to protect the neck and the two arms not to make cold.