Rinse with warm salt water several times a day
Avoid spicy, acidic, salty, and crunchy foods
Drink plenty of water
Use a soft-bristled toothbrush
Avoid alcohol and tobacco
Use over-the-counter oral pain relief gel
Suck on ice chips or cold foods
Eat soft, bland foods
Keep good oral hygiene
Avoid biting or irritating the sore
See a dentist or doctor if it lasts more than 2 weeks
Seek medical care if it is very painful, growing, bleeding, or recurring