Can You Put Peroxide on a Canker Sore

Hydrogen peroxide promotes healing of a canker sore by cleaning the sore and reducing bacteria in your mouth. To use: Dilute a 3 percent solution of hydrogen peroxide with equal parts water.

How does hydrogen peroxide help canker sores?

Hydrogen peroxide rinse is a mild antiseptic used in the mouth to help relieve minor mouth irritation (e.g., due to canker/cold sores, gingivitis, dentures, orthodontic appliances). It works by releasing oxygen when it is applied to the affected area.

What kills canker sores fast?

How do you heal a canker sore fast? Hydrogen peroxide products such as Orajel Antiseptic Mouth Sore Rinse can help heal canker sores quickly.