Symptoms: Green beans are a kind of vegetables that can be eaten in all seasons, so green bean poisoning will occur all year round. Green bean poisoning is not as dangerous as poisonous mushrooms, however, its occurrence time in a year is far more serious than poisonous mushrooms, and it is the most common kind of plant food poisoning in China. Generally, green beans will get sick 0.5-5 hours after eating, first of all, stomach discomfort, then nausea, vomiting and abdominal pain; Some patients will also have dizziness, headache and fever. First aid: (1) People with mild poisoning only need to lie still and rest, drink a small amount of boiled water or strong tea water several times, and take sedatives such as diazepam and hypnotic when necessary. (2) Those with severe poisoning should be sent to hospital for treatment in time if they vomit repeatedly, resulting in dehydration or hemolysis. (3) The folk side uses licorice and mung bean decoction as tea, which has a certain detoxification effect.