A canker sore typically heals within a few days, but it can cause discomfort while it is healing. The mouth ulcer typically develops on the interior of the cheeks or on the tongue which makes eating uncomfortable. A canker sore is not contagious unlike the cold sores which are blisters that develop on the lips.
Mouthwash
Mouthwashes that contain tetracycline can minimize the pain, promote the healing process and avert bacterial infections in the sores. The tetracycline is prescribed by the doctor but can stain the teeth of young children.
It is recommended to prepare a home-based mouthwash by mixing 2 ounces of hydrogen peroxide with 2 ounces of water and a teaspoon of salt and baking soda. Swish the solution in the mouth at least 4 times throughout the day. Rinse using a cup of warm water and half-teaspoon of salt a number of times throughout the day.
Ointment
Apply a combination of equal amounts water and hydrogen peroxide on the sore and then follow a small quantity of milk of magnesia that is wiped on the sore a number of times a day to reduce the pain and hasten the healing. You can apply a cream made out of baking soda and water straight on the sores after meals.
Tea bags
Apply moist black tea bags on a canker sore. Take note that black tea contains tannin which reduces pain and often found in some medications. These tea bags have long been utilized as home remedies for toothaches.
Over-the-counter medications
The medications that contain glycerin and peroxide can be used to clean and coat the canker sore while reducing the discomfort. Medications with benzocaine, eucalyptol and menthol are often used. These can cause a stinging sensation initially, but can numb the canker sore and promote healing. In addition, benzocaine works by reducing the pain and duration of a canker sore.
Care
It is vital to ensure that the child avoids any sour or spicy foods as well as chips that can further irritate the canker sore. The child must use a soft-bristled toothbrush and avoid using one that contains sodium lauryl sulfate that can promote more sores.