At present, the first choice in clinical carbon monoxide poisoning is hyperbaric oxygen therapy, there is no special drug, in addition, you can also use cytarabine, vitamin C, coenzyme A and other drugs to protect brain cells. Carbon monoxide binds firmly to hemoglobin in human blood, which normally binds to oxygen, and once inhaled, the affinity between carbon monoxide and hemoglobin is much greater than the affinity between oxygen and hemoglobin, which in turn leads to the manifestation of hypoxia in the body. Carbon monoxide poisoning can damage the brain nervous system, so once carbon monoxide poisoning is detected, the patient needs to be moved to a well-ventilated place to breathe fresh air as soon as possible, and the patient should be moved to a hospital with rescue conditions as soon as possible and given hyperbaric oxygen therapy as soon as possible. If the patient is impaired in consciousness, invasive ventilation with tracheal intubation should be given to correct hypoxia.