Oil of oregano has been used since ancient times to treat a wide variety of digestive and respiratory maladies as well as dental and joint problems. Although its constituents are known to have certain properties that suggest its effectiveness in treating these illnesses, little scientific research exists concerning oil of oregano's success in treating humans. Nevertheless, it remains a popular remedy among people who believe they have been helped by it.
Oregano
Oregano, botanical name Origanum vulgare, is a perennial herb that grows to approximately 32 inches in height, and has square red stems, elliptical leaves and clusters of deep pink flowers. It has been used since ancient times to help settle flatulence, ease stomach pains, calm nerves, treat coughs and other respiratory ills and promote menstruation.
Oil of Oregano
The composition of the original oils contained in the oregano plant vary according to the growing conditions, according to "The Complete Book of Herbs and Herb Gardening." It is native to the Mediterranean, where it grows in relatively dry soil on sunny hillsides. Oregano grown in cooler, wetter areas does not achieve the same intensity. Oil of oregano is distilled from the leaves of the plant.
Current Uses
Some people say that taking 20 to 60 drops of oil of oregano, diluted in water or juice twice daily helps alleviate their psoriasis. But no scientific studies have been done on this remedy, according to the University of Maryland Medical Center.
Similarly, many people believe it helps relieve sinusitis. It does have some antibacterial and antifungal properties, making it theoretically possible that it could help relieve or prevent sinus problems caused by bacteria and fungi. But scientific research on the subject is lacking, reports MayoClinic.com.
Constituents of oil of oregano have properties that suggest it may be effective in loosening phlegm so it is easier to cough up, and in killing fungi and worms, according to the "The American Pharmaceutical Association Practical Guide to Natural Medicines." Its antispasmodic and choleretic qualities may explain its reputation as a digestive aid. Again, however, it has not been proved to work in published human trials.
External Use
"The American Pharmaceutical Association Practical Guide to Natural Medicines" recommends diluting oil of oregano according to package directions and applying it externally to relieve toothache and rheumatism.
Cautions
No significant adverse reactions are associated with taking oil of oregano internally or externally, according to "The American Pharmaceutical Association Practical Guide to Natural Medicines." However, pregnant women should avoid consuming medicinal doses of oregano, since one of its traditional uses is for promoting menstruation, although again its effectiveness has not been proven.
References
- "The Encyclopedia of Medicinal Plants"; Andrew Chevalier; 1996
- "The Complete Book of Herbs and Herb Gardeing"; Jessica Houdret; 2009
- University of Maryland Medical Center: Psoriasis
- MayoClinic.com: Acute Sinusitis
- "The American Pharmaceutical Association Practical Guide to Natural Medicines"; Andrea Peirce; 1999
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