Hyperbaric oxygen is the most appropriate number of days to do with the patient’s condition and treatment effect, hyperbaric oxygen therapy is usually ten days for a course of treatment, treatment ranging from twenty days to one hundred days. Hyperbaric oxygen can be used as an adjunctive treatment for patients with head and spinal injuries, as well as for patients with severe carbon monoxide poisoning, and for the recovery of various neurological injuries. Hyperbaric oxygen therapy can induce the formation of blood oxygen saturation in the local tissue area, increase the partial pressure of oxygen in the local body tissues, improve the mitochondrial function of neuron cells, and promote the repair of nerve cells and energy utilization. Nerve repair is extremely slow and requires a longer treatment time, and patients with different diseases have different degrees of severity, clinically it is generally recommended that patients need at least twenty to thirty days of hyperbaric oxygen therapy. It is recommended that patients develop a specific treatment plan under the guidance of their doctor.