Lobelia poisoning occurs most often in the spring and usually develops tens of minutes to hours after eating. Its main manifestations are as follows. 1. Mild poisoning is characterized by digestive symptoms. Performance for the throat and mouth burning, nausea and vomiting, abdominal pain, diarrhea, occasionally mucus blood stools. Repeated or severe vomiting and diarrhea can lead to dehydration, electrolyte imbalance, blood pressure drop. 2. Severe poisoning is dominated by neurological symptoms, such as tinnitus, photophobia, headache, dizziness, fever, dilated pupils, respiratory distress, facial bruising, black lips and ends of limbs; in severe cases, coma, convulsions, and death due to paralysis of respiratory center. 3. It can also cause intestinal cyanosis. Lobelia alkaloid poisoning is mostly caused by the consumption of immature cyanosis skin and sprouted potatoes, so when consuming the above foods, they should be cooked thoroughly. Once the symptoms of poisoning should be timely consultation, to avoid blind use of drugs, delaying the diagnosis and treatment of the disease.