Occasional dry rales and even twanging and croup sounds in the lungs are symptoms of the clinical diagnosis of chlamydial pneumonia. There is only one serotype of Chlamydia pneumoniae, with the 98kD protein as its specific antigen, represented by the strain TWAR. more than 10 new strains of Chlamydia pneumoniae have been isolated, and it is an important respiratory pathogen. Chlamydia pneumoniae mainly causes atypical pneumonia in humans, but also causes bronchitis, pharyngitis, sinusitis, otitis media, iritis, hepatitis, myocarditis, endocarditis, meningitis, erythema nodosum, etc. It is also one of the important pathogens of secondary infections such as AIDS and leukemia, etc. In addition, epidemiological and etiological studies have concluded that Chlamydia pneumoniae infection is associated with cardiovascular diseases, which has attracted the high attention of scholars in various countries. In addition, epidemiological and etiological studies have suggested that Chlamydia pneumoniae infection is associated with cardiovascular disease, which has attracted great attention from scholars in various countries. Etiology of audible dry rales and croup in the lungs: Audible dry rales and croup in the lungs are caused by intracellular parasitic chlamydia, and the disease can be contracted by inhalation of droplets from sneezing. Respiratory disease: Respiratory disease is a common, multi-infarct disease, the main lesions in the trachea, bronchi, lungs and thorax, lesions in the lighter more cough, chest pain, breathing affected, the more severe respiratory distress, hypoxia, and even respiratory failure and death. The mortality rate in urban areas is the 3rd highest, while in rural areas it is the first. Atmospheric pollution, smoking, aging population and other factors have increased the morbidity and mortality of respiratory diseases. Lung qi deficiency: also known as lung qi deficiency. This means that the physiological function of the lung is weakened. Mostly caused by cold and warm discomfort, prolonged coughing and injury to the qi, sadness, and improper labor and rest. The symptoms are coughing and wheezing, shortness of breath, moving is more, sputum is thin, voice is low, fatigue, body is tired, face is (white light) white, fear of wind and sweating, tongue is light, coating is white, pulse is weak. Treatment is to tonify the lung qi. Ling Shu. Ben Shen: “Lung Qi deficiency is adverse to nasal congestion, less gas, the real is wheezing drink chest surplus Yang rest.” Emphysema is a pathological state in which the airways at the distal end of the terminal fine bronchi (respiratory fine bronchi, alveolar ducts, alveolar sacs and alveoli) are hypoelastic, hyperinflated, inflated and have increased lung volume or are accompanied by destruction of the airway walls. There are several types of emphysema according to their pathogenesis: senile emphysema, compensatory emphysema, interstitial emphysema, focal emphysema, paracentral emphysema, and obstructive emphysema.