Rinse your mouth with warm salt water several times a day
Avoid spicy, acidic, salty, or rough foods
Use a soft-bristled toothbrush
Brush gently and maintain good oral hygiene
Stay hydrated
Use over-the-counter oral gels or protective pastes
Take pain relievers if needed and safe for you
Avoid smoking and alcohol
Eat soft, cool foods
Manage stress and get enough rest
Check for triggers like certain foods, dental appliances, or toothpaste
See a dentist or doctor if ulcers are large, very painful, frequent, or last more than two weeks