2. Change your toothpaste.
Toothpaste and mouthwash containing sodium sulphate, a commonly used ingredient, can trigger the appearance of mouth sores. If you notice such an effect, it is good to change your toothpaste as soon as possible.
Toothpastes containing harmful ingredients such as sodium sulphate can cause mouth sores or may exacerbate the symptoms of existing sores due to other factors. These effects are different, depending on the sensitivity of the mouth tissues, but the doctor can tell exactly if there is a risk or not.
3. Rinse your mouth with salt water.
Excepting the unpleasant taste of this procedure, it is a remedy that works. If it does not work, it means you did not use the proper amount of salt.
Salt cleanse and dehydrate the wound to help it heal and temporarily numb the pain and burn created by the mouth sores. However, you should know that this procedure will cause great pain, but for short time. The mixture should not be swallowed: spit it after use and rinse your mouth afterwards.