Rinse with warm salt water several times a day
Use a baking soda rinse
Avoid spicy, acidic, salty, and rough foods
Eat soft, bland foods
Drink plenty of water
Use an over-the-counter oral numbing gel
Apply a protective oral paste or patch
Take over-the-counter pain relievers if needed
Brush gently with a soft-bristled toothbrush
Use alcohol-free mouthwash
Avoid chewing gum and tobacco
Suck on ice chips or cold drinks
Manage stress
Get enough sleep
Avoid foods that trigger sores
See a dentist or doctor if sores are large, frequent, last more than 2 weeks, or come with fever or trouble eating or drinking