Mouth ulcers, also known as canker sores, can occur on the roof of the mouth, the inside of the cheeks, on the gums or on the tongue. These ulcers are small, circular white patches with a red, swollen ring around the outside. Mouth ulcers can form due to a cut in the mouth, eating acidic foods like tomatoes and lemons, stress or heredity. You can cure mouth ulcers at home with a few items from around the house.
Salt is a natural antiseptic that will desensitize your sore. In a small cup, place a teaspoon of salt and a few drops of water. Combine with a spoon to make a thick paste. Using a paper towel, dry the afflicted area carefully, then apply the salt and water paste directly to the sore. It should be thick enough that the solution stays on your sore. Leave the salt there until it dissolves completely, then rinse your mouth out with water. Repeat twice a day. You can swish a saltwater solution for relief throughout the day, but do not swallow it.
Baking soda is another natural antiseptic that will sanitize your mouth ulcer. Measure 1 tsp. of baking soda into a glass. Add a few drops of water and mix thoroughly with a spoon. The mixing should make a thick paste. Using a paper towel, carefully blot the afflicted area to remove the excess moisture. Place the baking soda mixture directly on top of the mouth ulcer. Leave the mixture on the sore until it dissolves completely. Repeat twice for a total of three times per day until the sore is gone.
Benzocaine is a local anesthetic that is present in many topical numbing gels and creams designed for the mouth. You can purchase benzocaine-containing products at your local drugstore or grocery store. Some products that include benzocaine are Anbesol, Oragel and Kanka. Before using, blot the area with a paper towel to remove excess moisture. Apply the gel or cream directly to the sore with a cotton swab. The product will numb the sore. Repeat every four hours as necessary.