Even if the precise cause for canker sores is not clear, researchers think that it is a combination of several factors that contribute to their formation. These include:

Overreaction of the immune system that causes it to attack the healthy cells in your mouth instead of the pathogens

Minor physical injuries or trauma formed due to mishaps, overzealous brushing,hahahahaha, or an accidental bite

Chemical injuries such as those caused by aspirin or alcohol

An allergic response caused by bacteria in the mouth

Diseases such as celiac disease, Behcet's disease, Crohn's disease, and even HIV

hah

1 wait
2 rinse with saline (salt water loll)
3 put baking powder on it and prepare to cry
4 brush teeth and rinse w antibacterial mouthwash often ( :(damn pain while brushing...)
5 use H2O2 to rinse


Vitamin intake, proper rest, stress reduction exercise and good diet can all help. Avoid foods that may produce mouth trauma. Some even suggest potato chips should be avoided by children who have problems with canker sores.

today i slept in the library sofa which was #(@fSDKLFJS comfortable. though @*(#)@KLDJAS weird. hah.. screwed in mind. FINALLY i thought of sth to the acronym. sianzzz