Nausea and vomiting may be related to gastrointestinal dysfunction, gastroenteritis, food poisoning, etc. You should consult a doctor in time and take medication under the guidance of a physician to intervene and relieve the symptoms. 1. Gastrointestinal dysfunction: If gastrointestinal dysfunction is caused by improper diet, antidiarrheal agents such as montelukast can be taken to relieve nausea and vomiting. 2. Gastroenteritis: if the patient vomits and accompanied by diarrhea, it may be caused by improper diet gastroenteritis, you can take domperidone, mosapride and other drugs to promote gastric motivation to relieve the symptoms, or with the application of clarithromycin, amoxicillin and other antibacterial treatment. 3. Food poisoning: when patients eat bad things with violent vomiting symptoms, may also be caused by food poisoning, generally take flavin, levofloxacin, ciprofloxacin and other quinolone antibacterial drugs. It is recommended that patients rest more, pay attention to light diet, you can eat porridge, noodle soup and other staple foods to reduce the burden on the stomach and intestines, avoid eating chili peppers, fried chicken, ice cream and other spicy stimulation, greasy, cold food, and to quit smoking and drinking. The above medications should be taken under the guidance of a physician. Appearance of the above symptoms should be timely consultation, under the guidance of a professional physician to clarify the cause of the disease, to give targeted treatment, do not blindly self-medication.