First Responder P. Roulette
Try rinsing your mouth with a solution of Â½ teaspoon salt dissolved in 8 ounces of water.
Another mixture that may be helpful consists of 1-2 tablespoons of Maalox mixed with Â½ tablespoon of liquid diphenhydramine (Benadryl). Swish a teaspoonful in your mouth and spit it out. This can be done four times a day.
A number of medications are available over the counter, for example, calamine (Calamox) lotion.
Liquids or ointments with a numbing ingredient such as benzocaine (Anbesol, Oragel, Orabase, Zilactin-B, Tanac) help relieve the discomfort of canker sores.