Mild convexity of the mouth due to rhinitis can be restored with maxillofacial orthodontics.
Rhinitis is caused by prolonged open-mouth breathing due to nasal congestion. If you want to improve the bumpy mouth phenomenon, first of all, you need to treat the rhinitis, such as using budesonide, ambroxol, mometasone furoate nasal spray under the guidance of the doctor to improve the nasal congestion as well as inhibit the nasal edema, oozing, and eliminate the habit of open-mouth breathing, which can avoid further aggravation of the bumpy mouth.
If you already have a bulging mouth, due to dental problems or jaw problems, you will need to undergo orthodontics, jaw straightening, lip retraction, and other surgical procedures to improve your bulging mouth, as determined by a medical professional.