Oregano Oil 90 softgel by NOW contains an herb used as far back as ancient Egypt for its healing power. Distilled from the leaves and flowers of the oregano plant. oregano oil is a powerful natural antibiotic which helps the body's immune system fight bacterial infection. Taken on a daily basis as a nutritional supplement. Oregano Oil 90 softgel by NOW can help to reduce the risk of illness caused by fungi. parasites and viruses.