If a child has taken preservatives by mistake, the specific measures are as follows: firstly, the child should be allowed to drink plenty of warm water at home. Secondly, parents can give vomiting, picking the throat, the gastrointestinal tract has not been fully absorbed preservatives as soon as possible to vomit, spit out. Then, quickly go to the hospital, after arriving at the hospital to give the child further cleaning, gastric lavage, gastric lavage can be applied to the application of mannitol and other drugs for cleaning enema, at the same time can be given to the appropriate diuretic diuretic treatment, according to the child’s condition can be given to the gastric mucosal protector and injectable vitamin C and other drugs for injection treatment. Finally, the child’s vital signs should be monitored, heart rate, blood pressure, pulse, oxygen saturation and other indicators and parameters should be observed, and at the same time, the function of the liver and kidneys should be checked.