If the patient is poisoned orally, the small dose can be taken orally to induce vomiting and gastric lavage, while giving a lot of rehydration, if the oral dose is relatively large, it is recommended to give symptomatic treatment in hospital while gastric lavage to protect all organs of the body. If the oral dose is large, it is recommended that the patient be hospitalized for symptomatic treatment at the same time as gastric lavage to protect the function of each organ to reduce the degree of damage. If the patient is poisoned by inhalation, the patient can be moved to a place with fresh air. If there are symptoms of respiratory tract irritation such as coughing and difficulty in breathing, symptomatic treatment such as oxygen therapy can be given. If there is an early reaction such as chemical injury, hospitalization can be given, and adequate amount of glucocorticoids can be applied for symptomatic treatment, and respirator can be used if necessary. In case of skin or eye contamination, it is recommended to flush heavily with flow and seek prompt medical attention.