A 6-year-old boy with toothache can be treated with conservative treatment, dental treatment, and extraction treatment for symptomatic pain relief. First of all, it is recommended that the child should go to a professional dentistry department if possible, and if necessary, take local dental film to check the specific tooth pain situation. Generally speaking, most of the toothache of 6 years old children is caused by the pain of pulpitis caused by tooth decay, for this case, if it happens in the front teeth, because the front teeth of 6 years old are in the replacement period, check whether it is the caries of the milk teeth or the caries of the permanent teeth. If it is the caries of the milk teeth and the permanent teeth will be replaced soon, we can consider to extract the caries of the milk teeth and wait for the permanent teeth to erupt, but if it is the caries of the permanent teeth, we need to decay and fill the teeth as soon as possible. The same is true for the posterior teeth, which require root canal treatment for the dentition. However, if the child does not have the condition to seek immediate medical attention, then only conservative anti-inflammatory and analgesic treatment can be considered, generally the commonly used analgesic medicine for children can be considered to apply ibuprofen suspension, and anti-inflammatory medicine can be considered to apply pediatric cephalosporin anti-inflammatory medicine.