Pulmonary alveoli are large pulmonary blisters. Those that are single, few in number and small in diameter are not very serious; while those that are larger in diameter or more in number are generally more serious. 1. Single, few in number and small in diameter: This is not a serious condition, and patients usually have no discomfort, so no special treatment is needed. However, regular follow-up is needed to observe the changes of pulmonary blisters so that early treatment can be made. 2. Larger diameter or larger number: for larger diameter or larger number, especially if combined with chronic bronchitis or bronchial asthma, this situation is more serious. If the acute attack of chronic bronchitis or bronchial asthma, it may lead to the rupture of pulmonary herpes to form pneumothorax and hemopneumothorax. Huge lung blisters may also compress normal lung tissue, leading to decreased lung function. If a patient has pulmonary herpes, he should consult a doctor in time and take different treatments according to different conditions under the doctor’s guidance.