Step 1: Typical Causes
-An Injury To the mouth Usually seen in sports ,when one bites the inside of their mouth.
-The temperature of food or drinks ,being burnt by one.
-Acidic foods like fruit and cocoa.
-The use of Chewing tobacco can cause irritation with the chemicals that is uses.
-An irritation in the skin like broken teeth.
These are some of the more common causes of canker sores.
Make sure to see your doctor if:
*It becomes very large
*if there is an extreme amount of pain
*Does not heal after 15 days