How to cure sores in the mouth

Sores in the mouth or canker sores are an uncomfortable condition that causes many discomforts to those who suffer. They occur in the inner part of the mouth, usually near the cheeks, on the inner side of the lips or on the tongue, as a result of injury or various health problems. It is very important that when noticing the first discomfort we start with some treatment to relieve them and cure them besides going to the doctor, especially if they get worse or appear more. These are very painful lesions, so in ANCOM we explain how to heal the sores in the mouth and improve them as soon as possible.

How to cure sores in the mouth

Causes of canker sores in the mouth

It is very important to know the reasons why canker sores appear because both to cure them and to prevent them we will have to change some habits or treat some other health problem that is causing them. So, these are the reasons why scores come out in the mouth, either on the lips, gums or the inside of the cheeks:

  • Rubbing injury
  • Nibbles
  • Infection in the mouth
  • Hormonal changes
  • Low defenses
  • Nutritional deficiencies
  • Stress and anxiety
  • Allergies
  • Heartburn

These are the main causes of mouth sores in adults, but some such as biting, rubbing, hormonal changes and low defenses are also common causes of mouth sores in children.


Salt is one of the cheapest and most effective antiseptics available, so it is an excellent ally to cure sores in the mouth naturally. Mix a teaspoon of salt in half a glass of warm water and rinse your mouth with the liquid, emphasizing the area where the store is located and then spits the water.
Repeat this process three times a day and you will see how little by little the cold sore in your mouth begins to heal

Baking soda

Baking soda

Among the home remedies to cure sores in the mouth, we also have baking soda, which like salt works as a good antiseptic. You can mix it with half a glass of water and rinse, or prepare a mixture to apply directly on the canker. Add a little water and a little baking soda in the same amount, mix until a paste is formed and apply directly on your sore. You can repeat three times a day.

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Oxygenated water is also an excellent remedy to treat thrush in the mouth. You can take a swab from those used to clean the ears and immerse it in hydrogen peroxide, applied directly on the cold sore. You can follow this process three times a day, this will help calm the discomfort and prevent an infection from spreading. This form of application is very practical when the problem is the ulcers on the lips or the front of the gums.

The mouthwash also usually soothes the discomfort caused by the sores in the mouth, causing immediate relief and controlling the formation of bacteria.


Apply cold

These homemade remedies will help you to treat the sores in the mouth little by little, but if you want to deal also with the pain that these products you can put some ice in the affected area. Ice will help reduce inflammation and relieve pain, soothing the area of the cold sore. Do it as many times a day as you need.

Other types of painkillers such as ibuprofen may also be helpful in relieving pain, take them orally by following the prescription of the medication.


Foods like yogurt, because of the milk acid and good bacteria it contains, can help you change the PH composition of your mouth thus controlling the formation of unwanted bacteria. Eating a daily yogurt is a good home remedy especially if you suffer from canker sores frequently.

You can also apply directly to your sore, with a rod, milk of magnesia or any antacid, which will also help neutralize the formation of bacteria.


Tea Tree Essential Oil

This essential oil is a powerful antiseptic that serves to eliminate both bacteria and fungi and other microorganisms harmful to our health. It is advisable to use it in the inner part of the mouth, as it is very strong, to reduce it first by diluting it in water or in an infusion with another medicinal plant that is antibacterial or anti-inflammatory, as you will see in the next section.

So, to use the tea tree oil you should make a solution of this with 5-15% of this oil diluted in water or infusion. For example, it is recommended that in a glass with the infusion or warm water add about 10 drops of this essential oil and mix it. Use it as a normal mouthwash, concentrating on the point where the sore is and spitting afterward. Do not drink anything until at least 20 minutes later so the product can perform better. You can use this remedy 3 times a day the days you need to reduce or completely cure the oral sore.

Medicinal plants

Herbal remedies are another widely available home remedy for canker sores in the mouth. Thus, it is necessary to use plants that have antiseptic, antibacterial, antimicrobial, anti-inflammatory and digestive properties such as these:

  • Chamomile
  • Calendula
  • Thyme
  • Rosemary
  • Sage
  • Turmeric
  • White willow bark

You should make an infusion with one of these herbs or some that are to your liking, let it warm and store it in the refrigerator. After half an hour it will be cold enough to help relieve the pain of the cold sore while the medicinal plants act. Use it as a regular mouthwash 3 times a day until the wound is healed.

Tea Tree Essential Oil

When to go to the doctor

If you have appliances on your teeth it is common for sores or canker sores to form in your mouth because of rubbing and constant visits to the dentist. if it is your case you will have to discuss it with the dentist in the visits that you have for review to give you the best solution not only to treat thrush but also to correct the problem in orthodontics that is causing them if possible.

But if they appear frequently and for no apparent reason, ie there has been no rubbing, biting or injury of any kind, it is important to consult your doctor to find out the reason why these injuries are often presented, as it could be a symptom of other conditions such as a virus or an intestinal disorder.

In addition, you should go to the doctor whenever you see that even with treatments the sores get worse or if they appear more in other areas of the mouth.

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Tips for fighting sores in the mouth

Not only is it important to apply some of the treatments discussed above and go to the doctor if necessary, you must also keep these tips in mind to cure canker sores more easily:

  • It is very important to take care of your diet to improve as soon as possible and not increase the injury. In our article what to eat if I have thrush can find the best alternatives for your food while you have this injury.
  • You can take special supplements to help you fight the sores, you'll find them in pharmacies and some specialty stores.
  • Although it is easy for our tongue to pass several times through the area affected by the sore, try to avoid touching it constantly with it because if you do it will become more inflamed and will be difficult to heal.
  • Although it is very annoying injuries, it is possible to prevent their formation. In our article how to avoid sores in the mouth, we explain the appropriate way to get it.
Tips for fighting sores in the mouth

This article is purely informative, in ONE we do not have the power to prescribe any medical treatment or make any kind of diagnosis. We invite you to go to a doctor in the case of presenting any type of condition or discomfort.

If you would like to read more articles similar to How to cure sores in the mouth, we recommend you to enter our Family Health category.
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