13. Oregano Oil
Oregano oil is another essential oil that can be purchased at a health store. The antioxidant and antibacterial properties of this oil can help reduce pain and swelling due to a tooth problem. To use this for your toothache, mix a few drops of the essential oil with 1 ounce of carrier oil, then apply a few drops of this solution on the affected area using a cotton ball or swab. Hold the cotton on the area for two or three minutes before removing it. Let the mixture sit for at least 10 minutes, then rinse it out.