Alright, so according to the responses I've gotten, my suspicions were confirmed.
The way I see it, Hyperbaric Treatment for autism is just an easy way out. It can be comforting and provide temporary improvement, but taking a dip in the pool is much cheaper and less dangerous.
Now my question is this:
There is a Hyperbaric Treatment Center where I live that advertises the chambers as a treatment for autism. I feel like this is wrong, and I know a kid who's parent's tried it. Nothing changed. I feel like I should do something about it. Your opinions?

Tell them how it seems to you... about (write a list down and slip it into their mailbox)  other lifestyle choices that could also be called "treatments" (but that do not have dangerous results possible from voerdoing it.... like swimming, jumping on a mani trampoline (works wonders!) using an excerice ball...(those big ones) etc.,/// tell them that instead of thinking of their kid as needing medical help and treatment - they can think of everything they do as a family and with their kids as a lifestyle choice...strengthen the body and soul with excercise, good food and acceptancee... keeping set mealtimes, eating healthy, being outdoors, visiting parks, swinging on swing sets!!

It isn't really my place to give other kids' parents advice on how to raise their child. But I'll use that advice for the treatment center.

Interesting question.

First: There are some medical purposes for Hyperbaric Chamber Treatment.
However: Autism is not one of them! Any "doctor" who tells You different is a quack...
The last few years there bin reports from (poor) countries where awareness about Autism is raising, like India, were quacks try to sell this not working snakeoil to people with Autistic kids (Source: Awares .org)

After I readed this I collected som informative links about it:

http://www.uhms.org/Default.aspx?tabid=270

http://www.pampusdivers.nl/Article.aspx?Article=32 (Dutch, History of HCT)

(Reasons for HCT, Page 1) http://www.springerlink.com/content/gk43...pdf?page=1
(Reasons for HCT, page 2) http://www.springerlink.com/content/gk43...pdf?page=2
(Reasons for HCT, page 3) http://www.springerlink.com/content/gk43...pdf?page=3

Ilja. _\\//

Alright kiddies. I will give you my opinion. First of all I am a commercial diver who owns a decompresion chamber I'm in Canada. I do not have autism or know any person with anything like that so I can't judge how you feel inside or whether hyperbarics are applicable for your specific "condition". What I can do is tell you how hyperbarics work. It is simple science you can compress air you can't compress liquids or solids, as much anyway. When a person is put into a hyperbaric chamber the theory is that the newly compressed air or "oxygen" is able to make it into damaged tissues that would normally be too damaged or swollen to allow access. As a result the body can absorb the oxygen into damaged tissues that would normally be necrotic, or dead or dying.
Also I would like to clarify that in the diving industry we breath air in the chamber with O2 interludes where we breath through a facemask or Built in Breathing System B.I.B.S. So the only way a person would die from oxygen toxicity would be if they were horribly misguided by their attendant. We use DCIEM dive tables or treatment tables that prevent this kind of mess up. A lot of science has gone into making this.
So all in all. I think that it is reasonable to treat autism with a hyperbaric chamber. If it can anyway improve your health that is treatment in my books. Just because it isn't the way you would go about something doesn't necessarily mean its wrong.
My theory in life is that the only way to solve a problem is to expand out of it, much like the American economy, if you can achieve superior health maybe it will alter other ailments in the process.

Heres a study on it. Conclusion from study: Of NO VALUE WHATSOEVER IN AUTISM>

Doreen Granpeesheh, Jonathan Tarbox, Dennis R. Dixon, Arthur E. Wilke, Michael S. Allen (2009). "Randomized Trial of Hyperbaric Oxygen Therapy for Children with Autism". Research in Autism Spectrum Disorders.

I think micgrace put it most wonderfully. It's high tech quack medicine. You might well ask a witchdoctor to get rid of TB by throwing a lock of your hair in a fire.

well theres nothing like science to validate something or not.

Heres a synopsis of the study
Autism Spectrum Disorders (ASDs) are characterized by the presence of impaired development in social interaction and communication and the presence of a restricted repertoire of activity and interests. While numerous treatments for ASDs have been proposed, very few have been subjected to rigorous scientific investigation. Hyperbaric oxygen therapy (HBOT) has been recently popularized as a treatment for the symptoms of ASDs. The purpose of this study was to test the hypothesis that HBOT would have a beneficial effect on ASD symptoms in the context of a double-blind placebo-controlled trial. This randomized double-blind placebo-controlled trial compared HBOT used to deliver 24% oxygen at 1.3 atmospheric pressure (n = 18) to placebo (n = 16) in children with Autistic Disorder. Both direct observational measures of behaviors symptomatic of autism and standardized psychological assessments were used to evaluate the effects of the treatment. No differences were detected between HBOT and placebo groups across any of the outcome measures. The present study demonstrates that HBOT delivered at 24% oxygen at 1.3 atmospheric pressure does not result in a clinically significant improvement of the symptoms of Autistic Disorder.