Rinse with warm salt water several times a day
Use a baking soda rinse
Avoid spicy, acidic, salty, or crunchy foods
Choose soft, bland foods
Drink plenty of water
Use an over-the-counter oral numbing gel
Apply a protective oral paste or patch
Brush gently with a soft-bristled toothbrush
Avoid alcohol-based mouthwash
Suck on ice chips or cold drinks
Manage stress
Get enough sleep
Avoid biting the inside of your mouth
Check for irritating dental products or foods
See a dentist or doctor if sores are severe, frequent, or last more than 2 weeks