Croton is a traditional Chinese medicine, which is used externally and cannot be taken internally. If diarrhea occurs when taken internally, it is recommended to stop the medicine immediately and seek medical attention to avoid gastrointestinal bleeding and other conditions. Croton is classified as a laxative in traditional Chinese medicine, pungent in flavor and hot in nature; it is highly toxic. Attributed to the stomach, large intestine meridian. Externally, it has the effect of eroding sores. It is used to treat malignant sores, scabies, and warts and moles. This product can only be made into a cream for external use, and cannot be taken internally. For external use, it should be applied to the affected area in moderation, or mashed and rubbed with gauze. Pregnant women are forbidden; should not be used with petunia seeds. Because the drug is highly toxic, it is not recommended to be taken internally, which may cause poisoning, nausea and vomiting, diarrhea and even vomiting of blood and other manifestations. Once the above toxic reaction occurs, you need to stop taking the medicine immediately and go to the hospital in time, if necessary, you need to take first aid measures. Croton should be used under the guidance of a professional doctor, not self-medication to avoid adverse reactions.