Rinse your mouth with warm salt water several times a day
Avoid spicy, acidic, salty, and rough foods
Use a soft-bristled toothbrush
Avoid alcohol-based mouthwash
Stay hydrated
Use over-the-counter oral pain relief gels or rinses as directed
Suck on ice chips or cold foods to reduce pain
Avoid smoking and tobacco products
Eat soft, bland foods
Manage stress and get enough rest
Check for and avoid foods that trigger irritation
Keep dentures or dental appliances clean and properly fitted
See a dentist or doctor if sores last more than 2 weeks, are severe, or keep coming back