Your body needs oxygen to get or make energy from the food you eat. Your lungs deliver oxygen to your blood. If your lungs can't get enough oxygen to your blood, you can feel short of breath and very uncomfortable. Oxygen therapy can help.
The oxygen comes through nasal prongs, a mask, or a breathing tube. If you have chronic obstructive pulmonary disease or other types of lung diseases, you may have a portable oxygen tank or a machine in your home.
A different kind of oxygen therapy is called hyperbaric oxygen therapy. It uses oxygen at high pressure to treat wounds and serious infections.
References and abstracts from MEDLINE/PubMed (National Library of Medicine)