Black oregano oil has the same benefits of regular oregano oil plus the added punch of black seed oil. The  2 of these together also lower blood pressure, cholesterol, and blood sugar. It's also great for hair skin and nails, and has the same antibiotic , anti-inflammatory, antibacterial, and anti fungal properties as regular Oregano oil.  Used at the first sign of symptoms,  black oregano oil will help ward off cold and flu viruses.