The lack of appetite and frequent vomiting may be due to physiological factors such as improper diet, but also due to intestinal flora imbalance, acute gastroenteritis and other diseases, commonly used therapeutic drugs are antiemetic drugs, pro-dynamic drugs, antibiotics, intestinal probiotics, etc., according to the cause of the cause of the first cause of treatment, and then symptomatic treatment. 1. Acute gastroenteritis: if the patient is due to acute gastroenteritis caused by bacterial infection, such as the lack of appetite, frequent vomiting, according to the results of the drug sensitivity to select sensitive antibiotics for anti-infection treatment, such as norfloxacin, cephalosporins and so on. 2. Disorders of intestinal flora: patients with disorders of intestinal flora may also have abnormal gastrointestinal function, resulting in loss of appetite and frequent vomiting, which can be relieved by taking intestinal probiotic preparations such as bifidobacteria and lactobacillus. Symptomatic treatment: If the patient vomits severely, drugs such as metoclopramide and vitamin B6 can be taken to alleviate the symptoms of vomiting, and prokinetic drugs such as domperidone and mosapride can be taken to promote gastrointestinal peristalsis and accelerate the emptying of food from the gastrointestinal tract to alleviate the symptoms of loss of appetite and frequent vomiting. Patients with no appetite and frequent vomiting can also be seen in other diseases, such as gastroesophageal reflux disease, stomach tumors, pregnant women, etc. It is recommended to consult a doctor in time to identify the cause of the disease and carry out targeted treatment. The medication should be taken in strict accordance with the doctor’s instructions, and should not be used on its own, so as not to delay or even aggravate the condition.