Poisoning from eating string beans can be helped by inducing vomiting, drinking mung bean soup and, if necessary, using penicillamine for treatment. When the beans are not cooked, they contain harmful substances such as saponin and saponin, which can cause a toxic reaction after ingestion. Once poisoning is found in eating beans, it is necessary to induce vomiting in time. By inducing vomiting, toxic substances in the stomach can be prevented from entering the intestines, which can reduce the damage caused to the digestive system. At the same time should also drink more water to promote the rapid metabolism of harmful substances in the intestines. Some people can appropriately drink mung bean soup, which has the effect of clearing heat and detoxification and can ease the poisoning reaction. For people who have been poisoned more seriously, especially those who have developed hemolysis, they can be treated with penicillamine appropriately. Penicillamine is mainly used for heavy metal poisoning and can terminate the hemolytic symptoms.