Acute gastroenteritis caused by irritable bowel syndrome preferred ceftriaxone and other anti-infective treatment of acute gastroenteritis, and then irritable bowel syndrome is mainly symptomatic treatment, such as abdominal pain is given scopolamine, but also the application of psychotropic drugs. Acute gastroenteritis, can be a trigger for irritable bowel syndrome, except that irritable bowel syndrome is not a sudden occurrence, there is often a certain pathological basis, such as the intestinal tract itself motor abnormalities, visceral sensory abnormalities or mental psychological disorders. First of all, we should remove the triggers and treat acute gastroenteritis, usually applying anti-infective treatment with cephalosporins such as ceftriaxone and quinolone antibiotics such as levofloxacin. Treatment of irritable bowel syndrome includes those who have abdominal pain can scopolamine and other anticholinergics antispasmodic and analgesic, those who have bloating can be given domperidone, mosapride to promote gastrointestinal dynamics, those who have diarrhea can be given montelukast to stop diarrhea, bifidobacteria to regulate intestinal flora, and those who have constipation can be applied to lactulose and other drugs. Acute gastroenteritis caused by irritable bowel syndrome should go to the hospital, under the guidance of the doctor. Do not self-medicate to avoid adverse reactions.