Acute gastroenteritis may be triggered by unclean diet of young children, which can be treated with general treatment, as well as medication such as montelukast and probiotics. 1. General treatment: Acute gastroenteritis diet should pay attention to avoid large fish and meat, avoid greasy food, cold and spicy stimulating food should also be avoided. Diet is light and easy to digest, but also pay attention to warmth, appropriate water and so on. 2. Medication: (1) Montelukast and other gastrointestinal mucosal protectants to prevent absorption of toxins and protect the gastrointestinal tract. (2) Probiotics to regulate intestinal flora, such as Bacillus subtilis bacillus granules, to restore intestinal microecology. (3) Appropriate supplementation of zinc helps to repair the intestinal mucosa. (4) Oral rehydration salts can be used for those with severe diarrhea at risk of dehydration, and intravenous hydration and electrolytes are needed for moderate to severe dehydration. (5) Invasive gastroenteritis caused by bacteria, often accompanied by mucus pus and blood, requires oral anti-infective therapy such as cefixime. Acute gastroenteritis in young children, there are other treatments, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment. All of the above medications should be used under the guidance of a doctor.