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Hydrogen Peroxide for Canker Sore

Hydrogen Peroxide for Canker Sore

Canker sores, also known as ulcers or mouth sores are sores, with yellow or white-gray centers and bright red edges. They are caused by everything from poor diet and stress vitamin deficiencies, trauma mouth, and a weak immune system. They occur in and around the mouth, throat, inside of the cheek, and tongue, and should not be confused with cold sores, which occur in the outer edges of the mouth.

Although not contagious, canker sores are painful and embarrassing. But you’re about to discover how to cure safely, quickly and naturally. commonly used as an antiseptic or bleaching agent, hydrogen peroxide (H2O2) is one of the most effective remedies for canker sores. Let’s take a look at how it works.

How hydrogen peroxide, Cures Canker Sores

  • Hydrogen peroxide is antibacterial and antiseptic. It kills bacteria in and around the mouth, mouth ulcer healing and reduce inflammation.
  • Hydrogen peroxide will produce visible results within 24 hours, and as it begins to work, that relieves the pain of canker sores.
  • The use on a regular basis of hydrogen peroxide as a mouthwash help maintain healthy levels of bacteria and prevent future cold sores.

Using hydrogen peroxide to cure canker sores

Popular methods listed below will relieve the pain and discomfort of canker sores and speed the healing process. Try each until you find the one that works best for you.

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1. The hydrogen peroxide water

  • Mix equal amounts of hydrogen peroxide and water.
  • Use the solution to rinse the mouth, swishing for 1-2 minutes, then spit it out.
  • Or use a cotton ball to apply it directly on the sore.
  • Do not swallow the solution.
  • not eat or drink for one hour after treatment.
  • Repeat regularly to prevent future cold sores.

2. The hydrogen peroxide and sodium bicarbonate salt

  • Mixture of small amounts of hydrogen peroxide and bicarbonate salt sodium.
  • Rinse your mouth with it 4-5 times a day.
  • Repeat regularly to prevent future ulcers.
  • Note: Sodium bicarbonate neutralizes acidity in order to ease the pain of a canker sore

3. Hydrogen peroxide milk of magnesia [

  • rinse mouth with mouthwash or salt water.
  • Mix equal parts of hydrogen peroxide and water.
  • use a cotton ball to apply the solution to the canker sore.
  • Leave a few minutes, then milk of magnesia DAB on it.
  • Let fir few minutes, then mix equal parts of liquid milk of magnesia and Benadryl.
  • Rinse your mouth with it, swishing for 1-2 minutes, then he spat.
  • Repeat 3-4 times a day.

4. Hydrogen peroxide unformatted

  • Use a cotton ball to apply hydrogen peroxide to the sore clear.
  • O swish a plug in the mouth for 10 minutes, wait 10-15 minutes and rinse with water.
  • Repeat once a day for 2-3 days.
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5. gargle with hydrogen peroxide and zinc lozenges


  • Mix equal parts of hydrogen peroxide and water.
  • Dissolve 1-2 tablets of zinc in the solution.
  • Gargle with it, then spit it out. Do not swallow.
  • Repeat 3-4 times a day until you see results.

Tips and precautions

Keep the following tips in mind in order to avoid side effects while using hydrogen peroxide.

  • Ingestion of hydrogen peroxide cause an upset stomach.
  • To prevent hydrogen peroxide from killing the good bacteria in the mouth and cause dental problems, use it only as often as your preferred method recommended.
  • In addition to using the above methods to cure and prevent canker sores, eating a balanced diet that provides your body with vitamins, minerals, protein and probiotics it needs to stay healthy.

Have you tried any of these methods to cure a canker sore? Do you know other methods that we have not mentioned? Share your experience with us!


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