To get rid of those painful sores in your mouth , over-the-counter pills form a long-lasting protective film on ulceration, which speeds healing and relieves pain quickly. Dry the skin with a cotton ball before applying the paste.

Deglycyrrhizinated licorice or DGL (without glycyrrhizin, which can raise blood pressure) can play the same role. You can find it in tablets at health food stores: chew it one or two or three times a day.

Aloe vera juice can relieve the pain associated with oral ulcers. If you have a plant at home, squeeze a leaf to extract some gel. If not, buy a gel in a pharmacy. Dry the mouth ulcer with cotton wool, then apply the gel by dabbing. Repeat as many times as you like. Open a liquid vitamin E capsule and pour a few drops on your mouth ulcer several times a day.

Neutralize the action of acids to promote healing of the mouth ulcer

Chew an antacid tablet (ask your pharmacist for advice) or apply it on the canker sore and let it dissolve. Persistent pain is caused by acids and digestive enzymes that eat away at ulcerated tissues. Antacid tablets neutralize these acids and can accelerate healing. Do not exceed the recommended dose.

Use a little milk of magnesia as a mouthwash or apply on the mouth ulcer three or four times a day.

Place a wet tea bag on the ulcer for 5 minutes. The tea is alkaline: it can neutralize the action of acids that make aphthae painful. It also contains astringent substances that help relieve pain.

  • Relieve the pain of sores or mouth ulcers in your mouth

  • Apply by swabbing a local non-prescription anesthetic. Do it several times a day if the product, gel or liquid, does not adhere to the tissues.

  • Also try baby teething gels, which also have a mild numbing action.

Oral ulcer: fighting bacteria and accelerating healing

Dilute 1 tbsp. tablespoons of hydrogen peroxide in half a glass of water. Add 1 tbsp. teaspoon sodium bicarbonate and 1 tsp. salt, then stir until dissolved. Rinse your mouth with this liquid and spit it out. Peroxide is a powerful disinfectant: the mouth ulcer is an open wound, which can therefore become infected, which would accentuate the pain. Sodium bicarbonate, alkaline, relieves by neutralizing the acids.

  • To accelerate healing, prepare a gargle made from hydrastis (or goldenseal), known for its antibacterial properties. Put 1 1/2 tsp. of mother tincture in 250 ml of hot water. Gargle once or twice a day, keep the liquid for about 5 minutes, then spit it out.

  • Apply a single drop of tea tree essential oil (melaleuca) to the mouth ulcer.

  • Prepare an infusion of calendula (or marigold). This herb has been used for centuries to treat mild cuts, skin irritations and insect bites.

Oral ulcer: prevention is better than cure

Avoid foods that cause canker sores. Certain cereals, seafood, pineapple, citrus fruits, dried fruits (especially nuts), figs, chocolate, tomatoes, green peppers, strawberries, gruyere or vinegar are most often incriminated .

To determine which one causes your canker sores, eliminate them all from your diet. Reintroduce them gradually, one by one, and observe if one of them reappears the ulceration.