The causes of pulmonary herpes chest pain may be related to larger or more number of pulmonary herpes, combined with pneumothorax, secondary intrapulmonary infection, pleural adhesion tear. 1. Larger or more lung blisters: affect the normal ventilation function of the lungs, at the same time, stimulate the pleura to cause pain, partly accompanied by shortness of breath, chest tightness and other manifestations. 2. Combined pneumothorax: it is one of the common causes of chest pain, rupture of pulmonary herpes, spontaneous pneumothorax occurs, which manifests as sudden chest pain accompanied by shortness of breath, cough, dyspnea, cyanosis and so on. 3. Secondary intrapulmonary infection: some pulmonary herpes can cause intrapulmonary infection, due to inflammation stimulation chest pain, accompanied by cough, fever and so on. 4. Tearing of pleural adhesion: if the pulmonary herpes is in the apical part of the lung or the pulmonary herpes is adherent to the pleura, it may cause tearing during strenuous activities or forceful coughing, thus causing chest pain. Lung blisters appear obvious chest pain, should cause great attention, go to the regular hospital in time, follow the doctor’s instructions standardized treatment.