Rinse your mouth gently with warm salt water before bed
Keep the area clean by avoiding touching or picking at it
Avoid spicy, acidic, crunchy, or very hot foods
Drink cool water to keep the mouth moist
Use a cold compress on the outside of your cheek if there is swelling
Take over-the-counter pain relief if needed and safe for you
Use a mouth rinse recommended by a pharmacist or dentist if appropriate
Brush gently with a soft-bristled toothbrush
Avoid alcohol and tobacco
Sleep with your head slightly elevated
Eat soft foods only until it starts healing
Seek medical or dental care if the cut is deep, bleeding heavily, or not improving