Children’s tooth extraction anesthesia generally will not have an effect, anesthesia drugs can be metabolized by their own out of the body, and occasionally see adverse reactions to anesthesia. The anesthesia drugs such as Lidocaine used in children’s tooth extraction are clinically verified by pharmacology and toxicology, which are safer and can eliminate children’s local pain sensation and help the doctor to have a better diagnosis and treatment, and can be discharged by the body’s own metabolism, and with the metabolism of the drugs, anesthesia effect will gradually disappear, and the local pain sensation will be restored, which will not have any impact on the children in general. Due to the different physique of individuals, a small number of children may have allergic reaction, toxic reaction, nerve damage, adrenaline reaction and other adverse reactions during tooth extraction, which need to be treated in time.