HBOT and mHBOT: Breathing in 100% (pure) oxygen under increased pressure, called HBOT, allows extra oxygen to be taken up by the bloodstream and dissolved at a far greater rate. This extra oxygen can help where healing is slowed down by infection or where blood supply is limited by damage to the tissues.
100% oxygen is considered a drug by the FDA and one needs a prescription to use it. Mild HyperBaric Therapy (mHBOT) has shown significant results and uses around 95% oxygen in a 1.3-1.4 atmospheric pressure. This is a much lower cost treatment that has little to no risk and great benefit.
These systems range in price from $5-$25,000 or you can get treatments that range between $50-$100 a session. HBOT that uses 100% oxygen and greater than 1.5 times the atmospheric pressure are around $200 a session.