Why do my lips hurt after playing trumpet?

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Tags

1. #playing
2. #using
3. #recommendation
4. #occurs
5. #equal
6. #lower
7. #balance
8. #either
9. #achieved
10. #portion
11. #having
12. #trumpet
13. #because
14. #common
15. #upper
16. #while
17. #technique
18. #pressure
19. #mouthpiece
20. #hurting
21. #place
22. #applied