Hyperbaric oxygen chamber treatment for brainstem injury has very good effect results. Hyperbaric oxygen therapy for craniocerebral injury has the following functions and advantages: it rapidly increases the oxygen content of the body, improves the symptoms of hypoxia in brain tissue cells, and is conducive to brain function repair; hyperbaric oxygen therapy can reduce cerebral edema and improve the symptoms of intracranial hypertension; it can activate the central reticular system and has a very obvious effect on promoting the awakening of comatose patients; it can establish the lateral branch circulation of brain tissue and improve the blood supply and oxygen supply of the brain supply.