Lung herpes are air-containing cystic cavities with a diameter of >1 cm formed in the lung tissue due to increased pressure in the alveolar cavity and rupture of the alveolar walls that fuse with each other, and the main complication is spontaneous pneumothorax, so lung herpes can be detected by CT examination of the patient who has a pneumothorax. However, it should be noted that it is difficult to differentiate large pulmonary herpes from pneumothorax, and the clinical manifestations are very similar, so it is difficult to judge according to the signs and manifestations, and chest CT is an effective differential diagnosis method. Lung herpes is an irreversible lung lesion without effective drug treatment, asymptomatic lung herpes found through examination generally do not require treatment; if caused by pneumothorax, large size of lung herpes should be surgically treated when obvious symptoms of lung tissue compression occur. Lung blisters patients, it is recommended to be treated as soon as possible after a clear diagnosis by a professional physician, do not be negligent, so as not to delay the condition.