Caries certainly can’t be treated by medication, because if there is already black stuff on the teeth, there is no way to control it by medication, so it must go to the dental chair and lie down, and fill it with other materials after removing those decayed stuffs for him. Many people may say that caries does not matter, if a child has a little caries at a very young age, it will become a big mistake. Many people say that it is very expensive to go to the stomatology department, but if you are aware of this, if you do the fossa closure when the child is 6-7 years old, you may be able to prevent him from growing cavities in his life, and the money you spend is very worthy, several dozen dollars a tooth. If you don’t care about it when there is a little bit of decay when you are small, and don’t care about it when there is decay, in the end, you may have to do root canal treatment, and the rotten nerve or even the rotten root will be extracted and the tooth will be planted, so the cost may be very high, and the fake one is fake. Therefore, we advocate that everyone should go to the hospital every six months to a year to check whether there are small cavities or not, so as to prevent them and kill them in the bud, and you may not have toothache in your life.