1. Immediately remove from contact, keep quiet and warm. If irritation occurs, observe closely for at least 12 hours. Rinse contaminated eyes and skin thoroughly with water. 2. Early reasonable oxygen therapy in the event of severe pulmonary edema or acute respiratory distress syndrome, nasal and mask continuous positive pressure ventilation (CPAP) or end-pulmonary positive pressure ventilation (PEEP) therapy can be given. 3. Adrenal glucocorticoid application early, adequate, short course application, such as dexamethasone 20-80mg per day. 4. Maintain open airway can be given Bronchial analgesics, such as asthma, aminophylline, etc., drug nebulization inhalation, tracheotomy if necessary. 5. defoaming agent pulmonary edema can be used dimethylsilyl oil aerosol, 0.5 ~ 1 bottle each time, cough foam sputum 1 ~ 3 bottles, intermittent use until the lung rales significantly reduced. 6. control the amount of fluid intake early in the course of the disease should be controlled, appropriate application of diuretics, generally do not use dehydrating agents. However, in moderate and severe poisoning, attention should be paid to the prevention and control of shock, replenishment of blood volume, correction of acidosis, appropriate use of vasoactive drugs, and can be combined with 654-2 to improve microcirculation.7. Actively prevent and treat pulmonary infections, rational use of antibiotics and prevention of complications.