15 Home Remedies for a Toothache

4. Hydrogen Peroxide Rinse

Rinsing the mouth with hydrogen peroxide offers healing benefits as well as pain relief. Combine equal parts of hydrogen peroxide and water and swish the mixture in your mouth for about 30 seconds. This remedy needs to be carried out with care, however, as it can be dangerous to swallow hydrogen peroxide. Be sure to add no less than an equal part of water to the peroxide -- it's not worth the risk to make a "stronger" solution.