Acute cerebral infarction rehabilitation period for hyperbaric oxygen chamber treatment time, at least two courses of maintenance, a course of 15 times, once a day. Hyperbaric oxygen can improve the symptoms of ischemia and hypoxia, increase the blood oxygen content, promote the regeneration of blood vessels and the establishment of collateral circulation, etc., and promote the recovery of neurological function. The therapeutic effect of hyperbaric oxygen on cerebral infarction has been fully recognized by the clinic. Hyperbaric oxygen therapy should pay attention to avoiding harm: high concentration of oxygen may cause damage to the patient’s organism, inducing central oxygen toxicity, hemolytic oxygen toxicity and other harm. High concentration oxygen inhalation may cause middle ear pneumatic pressure injury, lung pneumatic pressure injury, and a few patients may have vascular air embolism due to too fast decompression speed. For patients with cerebral infarction with the combined presence of severe emphysema, untreated pneumothorax, hypertension, epilepsy and other conditions, note that hyperbaric oxygen therapy cannot be performed. It is recommended that patients with acute cerebral infarction hyperbaric oxygen therapy, must be under the guidance of a doctor, standardized use, to prevent harm and delayed condition.