Thank you very much for the advice.

I wish it is not cancer. I want it to be biopsied but i am afraid. I afraid of the expenses, the physical and emotional pain, and also afraid for my family. I dont want my younger brother and sister to stop studying especially now that they are studying in a private school.

Also, i have shown this lesion to the dentist and she said that it was not a canker sore. I have searched that there is what they call brush biopsy, is that really accurate?