Croton is a diaphoretic medicine, pungent in taste, hot in nature, with great toxicity, belongs to the stomach and large intestine meridian, is the genus Croton of the family Euphorbiaceae, the dried mature fruit of the Croton tree. The clinical use of croton is croton cream, is to take clean croton kernel, crushed into mud, wrapped with multi-layer oil-absorbing paper, heated slightly baked, pressed to remove the oil, repeated several times until loose into powder no longer sticky cake for the degree, take out the research fine for croton cream. Or take clean croton kernel and grind it finely, add the right amount of starch and determine the fatty oil content between 18%-20%. The reason for the concoction is because it can reduce the toxicity of croton. If croton poisoning occurs, one should rest in bed, induce vomiting, and take large amounts of egg white, soy milk, milk, rice soup, and batter orally to protect the gastric mucosa. For patients with severe poisoning, symptomatic resuscitation such as gastric lavage, fluid transfusion, and blood transfusion should be performed.