There is no fastest prescription to induce vomiting, and rapid vomiting can be done by stimulating the pharynx, pressing the lower part of the stomach, and inducing vomiting and gastric lavage. 1. Stimulate the pharynx: patients can use chopsticks or fingers to reach into the mouth, press the root of the tongue or contact the back wall of the pharynx downward, through the stimulation of the vomiting reaction. 2. Pressing the lower part of the stomach: the patient can find the position of the stomach and press the lower part of the stomach, the stomach will be squeezed and vomiting may occur. 3. Inducing vomiting and gastric lavage: If the patient has severe drug or food poisoning, clinical treatment often includes inducing vomiting and gastric lavage. Emetic may lead to gastric mucous membrane damage, esophageal mucous membrane damage, esophageal perforation, etc. It is not recommended to emetic often in life, if there is serious food poisoning or drug poisoning should be timely medical treatment, so as to avoid delaying the condition, or even life-threatening.