Cayenne pepper, aloe, ice and aspirin are home treatments for mouth ulcers, such as canker sores, on the tongue, according to HowStuffWorks. Dentists also suggest placing a mixture of Benadryl and Milk of Magnesia on the sore with a cotton swab without swallowing it.
Cayenne pepper candy is a good treatment for mouth ulcers as it can desensitize the nerves in the mouth that cause pain, explains HowStuffWorks. Aloe juice is another good remedy, as it has a number of healing properties. A person can also mix a teaspoon each of salt and baking soda with 2 ounces of hydrogen peroxide and place this directly onto the sore.
Sage is another option for those looking to treat mouth ulcers, according to HowStuffWorks. Three teaspoons of sage mixed in a pint of boiling water for 15 minutes makes a rinse that an individual can use several times a day. Individuals can also rub sage directly onto the ulcer.
Ice does not heal the sore, but sucking on an ice cube may help relieve pain, notes HowStuffWorks. Individuals can use aspirin or another over-the-counter pain reliever for comfort as the body heals the sore naturally. If the sore does not go away in about 10 days, it is advisable to see a doctor or dentist.