When should I go to the doctor for mouth sores?

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Tags

1. #treat
2. #dentist
3. #ulcer
4. #uncomfortable
5. #mouth
6. #ulcers
7. #three
8. #lasted
9. #painful
10. #drink
11. #brush
12. #usually
13. #teeth
14. #doctor
15. #which
16. #weeks
17. #pharmacist