Fipronil is a pesticide repellent and insecticide, and the symptoms of poisoning are those after inhalation poisoning.1. For example, when it is inhaled through oral cavity and respiratory tract, there will be strong local irritation, among which eye irritation, nasal irritation and mucous membrane irritation are especially significant, and asphyxiation, respiratory difficulty, laryngeal edema, pulmonary edema, inhalation pneumonia, etc. will occur;2. When the skin mucous membranes and epidermis are burned, there will be post-exposure skin Local mucous membrane redness, swelling, heat, pain, dysfunction, epidermal pain and burns, tingling and other symptoms; 3, such as ingested through the mouth will have strong digestive burning symptoms, such as nausea, vomiting, abdominal pain colic and even upper gastrointestinal tract with hemorrhage and blood in the stool; 4, will also cause circulatory symptoms, such as cardiac arrhythmia, tachycardia, acute coronary artery insufficiency of blood supply; 5, for the nervous system will cause excitation, hyperactivity, seizures, resting tremor and other conditions, the most serious will cause acute shock and renal failure symptoms.