5- Oregano (Origanum vulgare)
Scientists confirmed that oregano oil treats infections, due to the two potent compounds in the plant, thymol, and carvacrol.
David Bunting, director of botanical and regulatory affairs at Herb Pharm in Williams, Oregon, says that:
“Oregano can be helpful for traveler’s diarrhea and giardiasis, but it’s used primarily for upper respiratory infections. It’s best for short-term, low-grade problems like coughs and colds, but if you don’t feel better after several days, or you develop a high fever, you should definitely see a physician, who may need to prescribe antibiotics.”
The essential oil is the most therapeutic form you can use, and if taken improperly, it can even burn the mouth. Therefore, you should use products like Herb Pharm’s Oregano Spirits, which is a mixture of essential oil and a liquid oregano extract.
The recommended doses vary due to different weight and symptoms, from 20 drops two times daily to 30 drops 4 times daily, diluted in 4 ounces of water.
Caveats: Here we can only mention the potential of the essential oil to burn the mouth.