Hyperbaric Oxygen Therapy

"No, hyperbaric oxygen therapy (HBOT) has not been clinically proven to cure or be effective in the treatment of cancer, autism, or diabetes. But do a quick search on the Internet, and you'll see all kinds of claims for these and other diseases for which the device has not been cleared or approved by FDA."

Another example of a treatment that is useful, but with very clear and few medical problems only.

Hyperbaric Oxygen Therapy: Don't Be Misled