Vomiting and diarrhea stomach pain and diluted water may be the development of acute gastroenteritis or food poisoning. You can take medication or seek medical attention. 1. Acute gastroenteritis: Improper diet can easily cause an attack of acute gastroenteritis, vomiting and diarrhea, stomach pain, diarrhea and other symptoms. You can take antibiotics for treatment, such as ciprofloxacin, levofloxacin, and montelukast for severe diarrhea. Appropriate bed rest, if vomiting and diarrhea caused by dehydration, can be timely rehydration therapy. 2. Food poisoning: food poisoning can easily cause vomiting, diarrhea and diluted water symptoms, you can take the way of vomiting. Serious symptoms in time to the hospital for gastric lavage treatment, with rehydration therapy, to prevent shock. Simply based on the vomiting diarrhea stomach ache diluted water can not accurately determine the cause, but also need to be combined with the results of the examination in order to make an accurate judgment, it is recommended that under the guidance of a doctor to clarify the cause of the disease, and standardized treatment.