8 Remedies That May Help Heal Mouth Ulcers

November 10, 2018
Mouth ulcers appear inside your mouth and cause discomfort. Everyone gets them once in a while, so it's good to know some remedies that may relieve them.

Everyone has suffered from mouth ulcers at least once. Since they’re so annoying, most people seek remedies to help relieve them once they appear.

These ulcers appear for different reasons. Some of them are:

  • Injuries from biting yourself.
  • Harsh oral cleansers.
  • Emotional stress.
  • Hormonal changes.
  • Allergies.
  • Vitamin B12, iron, or folic acid deficiency.
  • Viral infections.

Mouth ulcers usually take 7 to 12 days to clear up on their own. Some of their characteristics are:

  • Reddish and painful blemishes or bumps.
  • A white or yellow-colored center.
  • Discomfort.
  • Stinging and localized pain.

Additionally, if the mouth ulcers don’t heal properly, they can lead to complications and cause:

Therefore, it’s important to treat them with remedies for mouth ulcers that may help speed up the healing process.

If you’d like to know some remedies that may help treat mouth ulcers, keep on reading!

1. Salt: One of the remedies for mouth ulcers

Salt is one of the remedies for mouth ulcers.

Salt has antiseptic and healing properties which may help heal mouth ulcers. It’s an inexpensive, effective, and convenient remedy.


  • 1 tablespoon of salt (10 g)
  • A glass of warm water (200 ml)


  • Pour the water and salt in a pot.
  • Stir well until the salt dissolves.
  • Bring to a boil and let boil for at least 5 minutes.
  • Let sit for 2 minutes.

How to apply

  • Rinse out your mouth with the mixture while it’s still warm.
  • Keep it in your mouth and gargle for 3 minutes.
  • Repeat many times throughout the day.

In the following days, you might see the pain and ulcers disappear.

2. Baking soda

Like salt, baking soda is a great antiseptic and it may help heal and regenerate wounds.


  • 3 tablespoons of baking soda (30 g)
  • ¼ glass of water (50 ml)


  • Pour the water into a pot, then let it boil for 3 minutes.
  • Let it sit until it cools down.
  • Transfer the water into an airtight plastic container and add the baking soda.
  • Mix well until a paste forms.

How to apply

  • Apply the baking soda paste to the mouth ulcers.
  • Leave on for 40 minutes and rinse off with cold water.

3. Ice as a short-term remedy

A woman applying ice to her mouth.

Ice is an excellent way to help heal mouth ulcers. It acts as a sedative that helps relieve pain and also significantly reduce swelling.

  • Apply the ice cube directly to the affected area, pressing down gently until the ulcers cool down.
  • You can use this remedy 3 to 4 times a day.

4. Hydrogen peroxide

When you have mouth ulcers that are difficult to treat, hydrogen peroxide might be able to help. It may also reduce your risk of possible infections.

  • To use it correctly, simply apply it directly to your ulcer with a cotton swab.
  • For fast results, we recommend doing this at least three times a day.

Recommended reading: 7 Home Treatments to Speed Up Recovery of Mouth Sores

5. Mouthwash and ulcers

A person with mouth ulcers.

Despite not being a natural remedy, using a mouthwash can bring short-term relief to the discomfort caused by mouth ulcers.

You may use it as follows:

  • As usual: rinse your mouth after brushing your teeth.
  • Apply it with a cotton swab.

This could interest you: Get Relief from Mouth Ulcers with These 6 Natural Remedies

6. Yogurt

Yogurt contains lactic acid and bacteria that may help regulate your mouth’s pH levels. Thus, it might help you heal faster.

Therefore, we recommend:

  • Eating 2 yogurts (250 ml) a day until the ulcers completely disappear.
  • Applying the yogurt directly to the ulcers with a cotton swab.

7. Onions


Onions are high in sulfur, which not only helps clean wounds, but also may help heal them.


  • 1 large onion
  • ½ glass of water (100 ml)
  • 1 teaspoon of salt (5 g)


  • Cut the onion into small pieces and put them in a pot.
  • Add water and salt and boil for 3 minutes.
  • Let it sit until it cools down.
  • Take the onion out of the water with a strainer.

How to apply

  • Dip a swab in the prepared water and apply directly to the mouth ulcers.
  • Leave on for 5 minutes and rinse off with cold water.

8. Sage and rosemary mouthwash


While sage has antibiotic, bactericidal, and antiseptic properties that may help heal mouth ulcers quickly, rosemary is an antiseptic and antispasmodic that helps relieve pain.


  • 2 tablespoons of sage (20 g)
  • ½ liter of water (500 ml)
  • 3 tablespoons of rosemary (30 g)


  • Combine all ingredients in a pot and boil for 20 minutes.
  • Afterward, remove from the heat and let it sit.

How to apply

  • While it’s still warm, rinse out your mouth with the mixture.
  • Keep it in your mouth and gargle for 3 minutes.
  • Repeat many times throughout the day.

In conclusion, these remedies may help you relieve pain and heal mouth ulcers quickly.

  • Velly, A. M., Franco, E. L., Schlecht, N., Pintos, J., Kowalski, L. P., Oliveira, B. V., & Curado, M. P. (1998). Relationship between dental factors and risk of upper aerodigestive tract cancer. Oral Oncology. https://doi.org/10.1016/S1368-8375(98)00003-7
  • World Health Organization. (2015). Oral health information systems.
  • Common mouth sores. (2001). Journal of the American Dental Association (1939). https://doi.org/10.14219/jada.archive.2001.0097