7 Home Remedies for Canker Sores | Proven Results

cranker sore

What is a Canker Sore?

If you are wondering what is going on with the white spots behind your lips, the chances are you got Canker Sores. Canker sore usually lasts about a week or so, but if it doesn’t go away within a couple of weeks, and you have problem eating, breathing, or sleeping because of it, you should seek medical attention right away.

Canker sore can keep you from doing many things in life. It doesn’t bother a lot of people; however, some people find it very annoying and painful. They are sometimes referred to as “Mouth Ulcer” which sounds scary but in most cases, they go away if you practice a good hygiene and stay healthy. By the way, the reason behind these canker sores is still a mystery, but some researchers say that it could be a result of bad habits, heredity, food, and/or stress.

Whatever the cause might be, you should always try to stay healthy and stress-free, exercise, and take care of your skin. Trying to medicate Canker Sores is a bit difficult topic to write, but we tried to bring you home remedies for Canker sores at least to get rid of them without a complex procedure or a costly option. The home remedies mentioned in this articles are borrowed by the Reference provided at the bottom of this page and is not my own.

One thing to keep in mind is that as you get older, you are likely to get these Canker sores more often.

Home Remedies

  1. Use Potassium Chlorate

    According to a professor at Purdue University, Dr Varro E. Tyler, putting a teaspoon of Potassium Chloride in a cup of water and rinsing mouth with it several times a day can help drastically reduce the chance of Sores getting spread across other parts of the skin. Please do not swallow the chemical while doing this.

  2. Eat yogurt each day

    “Eating 4 tablespoons of unflavored yogurt a day might help cure canker sore because of the good bacteria present in the yogurt according to a research by Dr. Litt.”( dermatologist from Beachwood, Ohio and the author of Your skin: From Acne to Zits).


  3. Wash your mouth with hydrogen peroxide

    Simply washing your mouth with Hydrogen Peroxide(Dilute) will help disinfect the sore and speed up the healing process. Do not use more than a tablespoon of Hydrogen peroxide to wash your mouth.  Hydrogen peroxide with water can be an easy solution, but if you would like to mouthwash with Filament which contains aloe vera, folate, and zinc, you could get the most out of your wash.

  4. Brush/Floss your teeth twice daily

    Brushing your teeth with a soft brush and flossing with soft floss can help you to keep your area clean and avoid the irritation that can happen due to the foods and bad breath. Make sure to brush your teeth carefully as you don’t want to touch your sores while brushing your teeth.

  5. Use tea bag to get extra relief

    Apply a wet black tea bag around the area of the sores to relieve pain caused by the sores. Black tea contains a relieving chemical called “Tannin”  which has the same effect as the over the counter(OTC) medicine Tanac, since Tanac also contains Tannin.

  6. Vitamins

    Taking vitamins such as B6 and B12 can help cure canker sores faster according to some researches. In general, these vitamins are helpful in many ways, but it can also help you to cure the sores faster as mentioned in this article.

  7. Aloe Vera

    Aloe Vera can help soothe irritation and might help to reduce pain and inflammation. Apply aloe vera directly to the canker sore area to get optimal benefits. Even though aloe vera is not helpful in curing the sore itself, it might be helpful for you to use it to avoid pain and inflammation during other forms of treatment.

What to Avoid

There are not that many things you can do to prevent Canker Sore from coming again and again; nevertheless, a little caution on the hygiene and the foods that you eat is not going to hurt either. Below are some of the things you should avoid doing to stay away from Canker Sores:

  • Avoid eating anything that irritates your mouth
  • Avoid eating spicy and citric foods
  • Do not eat junk foods and avoid coffee if you can
  • Avoid stress and stressful situations (Not always possible, but will be good if you can)

When to See a Doctor

If things get serious- and you will know it, you should visit the doctor right away. If you have trouble breathing or sleeping, then that might be the right time for you to contact your doctor.

Only doctors can prescribe you advance medications, steroids, or oral antibiotics to treat the disease itself and the infection as a whole. Therefore, do not hesitate to see your doctor if your canker sore conditions get worse for more than a week.

Disclaimer: We do not provide any medical help. The statement provided here is only for informational purposes. Please see your doctor if you have any specific questions regarding the diagnosis and treatment of Canker Sore. I hope the information provided here is helpful to you.


Barone, Don, and Debora Tkac. The Doctors Books of Home Remedies: Thousands of Tips and Techniques Anyone Can Use to Heal Everyday Health Problems. Rodale Health Books, 2001.


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