You cannot get rid of a cavity at home
See a dentist as soon as possible
Brush twice daily with fluoride toothpaste
Floss once daily
Use a fluoride mouth rinse
Limit sugary and acidic foods and drinks
Drink water after meals and snacks
Chew sugar-free gum if appropriate
Avoid smoking and tobacco
Use desensitizing toothpaste if recommended by a dentist
Take over-the-counter pain relief as directed on the label if needed
Call a dentist urgently if you have swelling, fever, severe pain, or trouble swallowing