A typical course of treatment, called a dive routine, lasts for 33 sessions, but can be extended if needed.
That’s thirty-three daily sessions of about two hours each. Put that way, the size of the commitment is clearer than the number alone suggests, and it’s worth knowing before you agree to a course, not after the first week.
The number is typical, not fixed. Hyperbaric dives follow specific proven dive protocols depending on the condition being treated, so the number for a particular person is set by what is being treated.
It’s also worth keeping in mind a narrower point: hyperbaric oxygen therapy can help some wounds heal faster.
Some wounds. A set course is not a guarantee of a result, and the number of sessions describes the protocol, not the outcome.
The practical questions that come with 33 daily sessions are mostly not clinical ones: transportation, work, who comes with you, and what happens if sessions are missed. Those are reasonable to ask the unit before starting, and they’re better answered then than figured out later.
Sessions usually go to 2.4 atmospheres at 100% oxygen, with two ten-minute oxygen breaks within each one to prevent oxygen seizures.