Nausea and bitter diarrhea are often seen in acute gastroenteritis, irritable bowel syndrome, intestinal flora imbalance and other diseases, can be adjusted by adjusting the lifestyle and diet, taking norfloxacin, loperamide, bifidobacteria and other drugs to regulate. 1. Adjust the lifestyle and diet: patients with nausea and bitter diarrhea should pay attention to a light diet, avoiding cold, spicy and other stimulating foods and fried foods that are difficult to digest, so as not to aggravate the burden on the stomach and intestines. Quit smoking and drinking, avoid drinking strong tea, strong coffee, etc., to reduce the stimulation of the gastrointestinal tract. At the same time, pay attention to changing eating habits, chew slowly, eat small meals, avoid overeating. Patients should also develop good work and rest habits, avoid staying up late, and ensure sufficient rest. Appropriate to strengthen the exercise, enhance their physical fitness. 2. Take drugs: If the patient is due to dietary impurity and other factors caused by acute bacterial gastroenteritis, you can take norfloxacin, azithromycin and other antibiotics for treatment, if the patient’s diarrhea is serious, should pay attention to replenish fluids to maintain the water-electrolyte balance. If the patient is due to irritable bowel syndrome, symptomatic treatment can be carried out. Diarrhea patients can take loperamide, montelukast and other antidiarrheal drugs, if the patient is accompanied by abdominal pain can also take scopolamine and other antispasmodic analgesic drugs. If the patient is due to intestinal flora imbalance, can take bifidobacteria, lactobacillus and other intestinal probiotic preparations to regulate. If the patient long-term or repeated nausea and bitter diarrhea, it is recommended to consult a doctor in a timely manner to identify the cause of the disease and carry out targeted treatment. Drugs must be taken strictly in accordance with the doctor’s instructions, not self-medication, so as not to delay or even aggravate the condition.