Hyperbaric oxygen is not recommended for lung infections. Inflammatory secretions increase in the alveoli of patients with lung infections, and hyperbaric oxygen therapy can increase the pressure in the lungs, which may aggravate the spread of lung infections. Especially after cerebral infarction or cerebral hemorrhage combined with severe lung infection, often appear respiratory failure, at this time the lung infection secretion is more, easy to phlegm blockage asphyxia, do not recommend hyperbaric oxygen, will aggravate the symptoms. Hyperbaric oxygen does not have much effect on lung infectious diseases, but may produce side effects, such as pneumothorax, emphysema and so on. If there is any lung infection, active anti-infection treatment is recommended. If the lung infection is caused by bacteria, antibiotics such as amoxicillin and azithromycin can be used as prescribed by the doctor. If there is a lung infection, active anti-infection treatment is needed. If the patient has a disease that requires hyperbaric oxygen therapy, it is recommended to use reasonable treatment under the guidance of the doctor.