I have had mouth soreness/white patch for 45 days. Its not going away. I had put tess medication and also consulted a dentist who prescribed multivitamins and to check back in 2 weeks. It hurts little while talking I mean while tongue touches the teeth. Dosent hurt while eating. The pain stayed the same from start. And the white patch also remains the same. I am worried it could be cancer .please help. I do not smoke or chew tobacco products. And drink twice a month. Please help.