My wife got some scars on her tongue for last 2 - 3 months. When initially when she consulted doctor, she was told to apply TESS ointment and take vit
B12 tab. But it didn't cure totally. Then we consulted dentist and dentist told that it may due to friction with sharp edges of teeth and filed the edges. But till date it is not cured fully. Photo attached. Please advise.