Native to the Mediterranean, the oregano plant, also known as Origanum vulgare is popularly known and used as a warm, balsamic and aromatic herb. This herb is a popular spice in the Greek and the Italian cuisine. This plant comes from the mint family Labiatae. Oil extracted from the oregano plant is known to be full of health benefits. Of all the oil formulas, wild Oregano P73 formula is the most used one, and is an easily available product in the market. Even though it is beneficial for health, a few side effects may appear after its use.