1, poisoning: acute carbon monoxide poisoning (gas) and other harmful gases (hydrogen sulfide, liquefied gas, gasoline, etc.) poisoning and drugs, chemical poisoning; 2, sudden deafness, diabetic foot Beijing Chaoyang Hospital hyperbaric oxygen department Wu Lianhua; 3, cerebrovascular disease: dizziness, cerebral insufficiency of blood supply, cerebral infarction, cerebral hemorrhage recovery; 4, traumatic brain injury and brain dysfunction: concussion, cerebral contusion, optic nerve injury 5, anaerobic infection and aseptic osteonecrosis: periodontal disease, gas gangrene, tetanus, osteomyelitis, femoral head necrosis; 6, post-transplantation: replantation of severed limbs (fingers, toes) and skin grafts, post-plastic surgery; 7, trauma and repair of various injuries: fractures and poor healing after fractures, sports injuries, radiation injuries 8, malignant tumor (with radiotherapy or chemotherapy); 9, other diseases of the nervous system: viral encephalitis, cerebral palsy, headache, acute infectious polyneuritis, multiple sclerosis, peripheral nerve injury, facial neuritis (facial palsy); 10, skin diseases: impetigo, psoriasis, pityriasis rosea.