Most canker sores go away on their own within one-to-two weeks. In the meantime, there are things that you can do to alleviate the pain and promote healing.
If you already have a canker sore then stop using toothpaste that contains sodium lauryl sulfate (SLS). Studies have shown that toothpaste contains SLS. SLS dries out the mucus lining in your mouth that protects against canker sores.
Over-the-counter and prescriptions medications can also be utilized to promote the healing of this dental condition. Many oral gels contain a numbing agent that when applied directly to the irritated sores helps numb the area and alleviates the pain. A dentist or a doctor may prescribe an anti-inflammatory gel or mouthwash. These steroid anti-inflammatory medications reduce the inflammation of the sores.
In the meantime, you can take care of your dental mouth sores by avoiding acidic, spicy, and hard foods. These types of foods aggravate the canker sore and delay the healing time. Eat your food in smaller bites and eat soft foods. This alleviates additional irritation to the sores. Use a straw when drinking cold beverages to avoid making contact with a canker sore. When cold liquids touch a canker sore it produces a stinging sensation. Drinking through a straw helps you control the flow of liquids and prevent additional irritation.
Lastly, be gentle when brushing your teeth. Brushing your teeth hard and quickly can cause you to stab your cheeks and gums. This damages the mucus lining in your mouth. If you already have a dental mouth sore that pain will be immense when your toothbrush touches it. Brushing your teeth too hard will prolong the healing process.