Hyperbaric therapy is the medical use of oxygen at a higher than atmospheric pressure.
The oxygen is administered to the individual in a pressurized chamber, with the goal of increasing oxygen absorption in bodily tissue.
It is normally used for the treatment of conditions such as embolisms, decompression sickness or carbon monoxide poisoning.
Some people think that hyperbaric therapy can also be used to reduce some of the core symptoms of autism.
They think that hyperabaric therapy addresses the underlying physiological problems in people with autism, such as oxidative stress , which they believe cause those symptoms.
The National Institute of Health and Clinical Excellence (NICE) made the following recommendations:
'Do not use hyperbaric oxygen therapy for the management of core symptoms of autism in adults.' (NICE, 2012)