<s>[INST] im 15 years old, on jan. 13 my mom died of oral cancer , a few days ago i found an ovel shapped pipmle like sore on the floor of my mouth . It stared to burn and itch really bad, i did research and it is most likley a canker sore , however i still have a feeling at the back of my head about oral cancer. I know that is very rare, but i just need to be sure can you please help me, please [/INST] in view of you are young and in this age its rare, most likely it would be apthous ulcer,. You should start multivitamin and apply antiseptic jelly(hexigel ) it would resolve by itself. </s>