Blood lead should be rechecked immediately, and if the secondary blood lead is high, lead poisoning can be diagnosed according to the current test results. The treatment principle of lead poisoning: firstly, to find out the source of lead exposure, that is, the cause of lead poisoning, and to carry out targeted environmental or behavioral interventions, which is the most important; secondly, to carry out non-pharmacological treatments, such as multivitamins, amino acids, trace element preparations, etc.; traditional Chinese medicine (TCM) treatments have a very good effect, and can be used as an option. Regularly review the blood lead (half a month to one month) to know the effect of treatment.