Oil of oregano is herbal oil extracted from the flowers and leaves of an oregano plant. The oil has a golden or dark-yellowish color. The highest-quality oregano oil derives from wild oregano, which is native to the Mediterranean region.
Oil of oregano is a powerful natural antibiotic. It contains phytochemical compounds, which have beneficial antioxidant effects. The two most abundant phytochemical compounds are thymol and carvacrol. As a result of these properties, the use of oregano oil dates back to the period of ancient Romans and Greeks. Some of its uses include treating urinary tract infections and preventing respiratory infections and yeast infections. It can also treat foot or nail fungus, alleviate sinus infections and kill parasites. Use of oil of oregano may reduce the body’s ability to absorb iron, and pregnant women should avoid it.