First of all, make an appointment with a dentist. You can go to a clinic or a private hospital for good service and convenience, but it costs a lot of money. You can also choose the public hospital, online appointment or call 114, may have to wait for 3 months, but affordable. Second, reflect on your child’s eating habits. Did he or she eat or drink before bedtime? Have they been eating or drinking milk in the middle of the night? Are there any sweet drinks and no water all day and night? Are there any snacks that your child keeps eating all day long? Are you addicted to sugar? If you have any of the above, please change it immediately. Third, do you brush and floss your child’s teeth effectively? It is difficult for children to cooperate with brushing when they are small. Please search for videos on brushing teeth for infants and toddlers at video sites and learn yourself. When your child does not have a toothache, you can wait for an appointment; but what if your child is already in pain? Go to a specialist hospital for emergency care. A word of advice: give your child good eating and oral hygiene habits from a young age and give him/her an oral exam every 3-6 months. This will save you a lot of money and your child will suffer less.