What are canker sores and how to improve them naturally

Canker sores are small ulcers or sores in the mouth of rounded shape and whitish or yellowish tone. They are painful, quite annoying, they usually disappear in a few days, between 7 and 10 days, they are a form of mouth ulcers and can appear in the mouth, gums and tongue.

Canker sores can appear as a result of virus infections, however certain causes are not yet fully known, they may also appear associated with a disorder of the immune system of our body.

Other possible causes may be as a result of: lack of some vitamins, lack of vitamin B12, deficit of some minerals such as iron and folic acid, hormonal changes, anxiety states, stress, fatigue, lowering of defenses and the allergy to some foods like, chocolate, some nuts, bananas.

On the other hand, other related causes have also been identified that can influence the appearance of annoying, painful and uncomfortable aphthae. They are the following: drink very hot drinks, tobacco, suffer some infectious diseases in the kidneys, liver or gallbladder, damage us by brushing our teeth, biting without realizing it, the tongue or some side of the mouth, having tooth decay or suffering of gingivitis (inflammation of the gums).

Canker sores as we have said before They heal in a few days, sometimes they can last up to 3 weeks, and in more rebellious cases they may take longer to heal. If the healing time is long, we should consult with the doctor to have it checked.

They usually heal without any treatment, and we can resort to some remedies to relieve the discomfort, which the pharmacist can tell us and for which no prescription is needed.

Natural remedies to treat, calm and cure canker sores

In addition to the natural remedies that we will provide below, we must take into account increase in our diet the foods rich in vitamin C and B, as well as follow a series of oral hygiene habits.

  • Wash your teeth after every meal.
  • Do not use mouthwash products that contain alcohol.
  • Be careful not to damage canker sores during tooth brushing.
  • Make mouth rinses with water and salt.

Mouthwash of magnesium chloride (sodium bicarbonate)

We dissolve a spoonful of magnesium chloride in a glass of water.

To make the rinse we must keep the preparation a few minutes in the mouth. Then we expel him. We do this rinse 3 times a day.

Sterile gauzes with magnesium chloride on canker sores

This remedy will be applied to canker sores as follows: We take a small sterile gauze moistened with a little mineral water and put a little bicarbonate on top.

Next we apply the gauze on the aphthae. We can apply this preparation 3 or 4 times a day.

Gargling with nettles infusion

The infusion of nettles helps to deflate canker sores, relieves discomfort, and canker sores are disappearing.


  • A handful of fresh leaves of nettle.
  • Half a liter of mineral water.


We put the water to boil and once it boils add the nettle leaves that we have previously washed.

Let it boil for 2 minutes.

Turn off the heat, cover the infusion and let it rest for 10 minutes.

We quench the infusion and let it cool.

Once it is cold we can make gargarismos.

It is advisable to make gargles 4 times a day.

If even trying to cure canker sores, take longer to cure than they should normally take or notice that something is wrong, we must go to the doctor to make a review, and prescribe the appropriate treatment to our case.

Some symptoms that are not common and that could alert us:

  • Fever.
  • Note the swollen lymph nodes.
  • General discomfort.
  • Fatigue.
  • Headache.
  • Canker sores get worse, even treating them to improve.
  • You have frequent aphthae, more than 2 or 3 times in the same year.
  • Diarrhea.

If you present any of these symptoms, it is essential to go to the doctor, so that he can make a timely review and assessment. This article is published for informational purposes only. It can not and should not replace the consultation with a Physician. We advise you to consult your Trusted Doctor.

Natural Remedies & Nutrition : Herbal Remedies for Canker Sores (January 2021)