Toothache caused by children's tooth decay is a very common clinical situation. For this situation, the best way is to seek medical advice in time. However, if the family members of the patients do not have the conditions to take the children to the doctor immediately, they can only take some drugs. Generally, for the symptoms of tooth pain, they can take the pain relieving drugs for the symptoms. For the children, they can consider using the ibuprofen suspension for children, which itself has the effect of antipyretic and analgesic. For children's anti-inflammatory drugs, nitroimidazole drugs are generally avoided as far as possible, and children's cephalosporins are preferred for children's anti-inflammatory treatment. However, finally, it needs to be emphasized that children's decayed teeth must be sent to the professional stomatology department as soon as possible, and the stomatologist should apply the dynamic system of the stomatology department to carry out the tooth decay and filling treatment. Because of its own reasons, once the decayed teeth of deciduous teeth develop very quickly, it may delay several days, and the condition will become more serious.