We’re probably all familiar with the herbaceous scent, but in its essential oil form, it’s a sharp green, vividly herbaceous aroma with an undercurrent of camphor. It’s not surprising then that it has been used for centuries to help decongest and with inhaled. General Information When we think of Oregano, it’s usually associated with pasta and sauce, but it’s not just a staple of Italian food. Not at all! Indeed, Oregano in its Essential Oil form is also quite well known for being a very potent and powerful healing agent.