Vomiting and diarrhea at night during the 28th week of pregnancy may be caused by poor diet, gastrointestinal dysfunction, intestinal infection with bacteria or viruses, etc. Bad dietary habits should be adjusted, together with abdominal massage, hot compresses, etc., to alleviate the symptoms of vomiting and diarrhea. If the vomiting and diarrhea is more serious, oral medication should be taken under the guidance of a professional doctor. 1. Dietary disorders: If dietary disorders lead to vomiting and diarrhea at night during the 28th week of pregnancy, you should start by changing your bad dietary habits, eat light, easy-to-digest food, drink more hot water, and properly perform abdominal massage or hot compresses, etc. to improve the symptoms of vomiting and diarrhea. 2. Gastrointestinal dysfunction: If the cold causes gastrointestinal dysfunction, resulting in vomiting and diarrhea at night during the 28th week of pregnancy, the first thing to do is to keep warm, and under the guidance of a professional doctor to take the protection of the gastrointestinal mucosa, gastrointestinal stimulant and antidiarrheal drugs, such as magnesium alumina carbonate, omeprazole, domperidone, montelukast, and so on. 3. Bacterial or viral intestinal infections: If bacterial or viral intestinal infections lead to vomiting and diarrhea at night during the 28th week of pregnancy, you can take medications to regulate the intestinal flora and antidiarrheal drugs, such as Bacillus subtilis, Bifidobacterium bifidum, and montelukast. If the pregnancy 28 weeks night vomiting diarrhea, do not recommend the unauthorized use of antibiotic drugs, should go to the regular hospital, with the professional doctor standardized medication treatment.