Hay consult in proper way.
If it is more then three week then you need proper evaluation.
Dont think about cancer. Many other lesions are there on toung. Like fungal or other white and red lesions of various cause.
But need proper evaluation for the diagnosis. May need biopsy.
Next Steps
consult me or ther maxillofacial surgeons or oral pathologist.
Health Tips
dont think about cancer.
betadime liquid application on that area may releave.