If the patient develops acute gastroenteritis in the middle of the night, hot water bags can be used to apply hot compresses to the abdomen to relieve the symptoms, or some hot water can also be drunk. If the patient has diarrhea and needs a lot of hydration, salt and sugar can be put in the water to replenish electrolytes and energy to avoid dehydration. If the diarrhea is more frequent, you can first self-administer oral antidiarrheal drugs such as montelukast and rehydration salts to avoid water-electrolyte disorders that can lead to patient shock. If the patient is prone to this symptom himself, he can first take the usual medications previously used. If the symptoms do not improve even after self-treatment, accompanied by severe vomiting, frequent diarrhea and worsening abdominal cramps, immediate hospital consultation is required to clarify whether other diseases are combined. Patients who suffer from acute gastroenteritis need to rest more, drink more water, avoid straining, and quit smoking and drinking. The diet should be light, you can eat noodles, thin rice, green vegetables, etc. Pay attention not to put too much oil when cooking, avoid spicy, greasy, frozen and other irritating foods, through reasonable dietary regulation, so that the gastrointestinal function gradually recover.