Two of the most common disorders of the mouth, the cold sore and the canker sore, are often confused with one another. Knowing the difference between a cold sore and canker sore can affect your choice of treatment or home remedy.
The difference between a cold sore and canker sore is where the sore appears. Both cold sores and canker sores cause sores in or around the mouth. However, cold sores are usually found outside the mouth and much less frequently inside it. Canker sores, on the other hand, occur only inside the mouth, where they affect the tongue and the inside linings of the cheeks, lips and even the throat.
According to the National Institute of Dental and Craniofacial Research, the cause of canker sores is not well understood. Canker sores dont seem to be triggered by viruses or bacteria, but are rather the result of allergic reactions to food, nutritional deficiencies, some form of autoimmune disease, emotional stress or hormonal imbalances.
Treatment of canker sores can involve allergy testing, nutritional supplements, non-prescription numbing agents like benzocaine, and mouth rinses containing an anti-inflammatory agent or the antibiotic...