First, the family prevention of pediatric diarrhea 1, summer is the most rapid reproduction of bacteria in the season, so in the summer especially to pay attention to water and food hygiene, the diet should be fresh, clean, the temperature is appropriate. Avoid eating too greasy (meat and fried food), sticky (dumplings, oil cake, sticky cake) and cold food. 2, advocate breastfeeding, especially in the first few months after birth should be breastfeeding, to avoid having summer weaning, add complementary foods should be in accordance with the dilute gradually thick, from less to more, from a single to a variety of attention to the reasonable flow of feeding. 3, cultivate children’s good hygiene habits, wash their hands before and after meals, and do a good job on weekdays of disinfecting food, tableware, diapers, commode, toys and other items that children come into contact with on a daily basis. 4, pay attention to climate change at any time, avoid the child to be cold or overheating. Feed more water in summer. 5, infectious diarrhea epidemic period, in the children gathered in public places should pay attention to timely disinfection, found diarrhea children or carriers should be isolated. 6, avoid long-term abuse of broad-spectrum antibiotics, so as not to cause intestinal flora imbalance. Second, the family care of pediatric diarrhea 1, severe vomiting temporary fasting 4~6 hours. 2. Breastfeeders continue to breastfeed and suspend complementary feeding. 3, artificial feeders can suspend milk and other foods, replaced by the same amount of rice soup, porridge, noodles and so on. 4. Suspected viral enteritis patients suspend dairy feeding and change to soy-based milk substitutes, or fermented milk. Use glucose with caution. 5. Severe vomiting should be fed with water or rice soup in small amount several times, and other children should be fed with water or oral rehydration salts on time. 6. Do not force the child to eat when he/she has no appetite. 7, change diapers frequently, rinse the buttocks with warm water after stool, wipe dry and put talcum powder. Keep the skin clean and dry. For those who have redness, swelling or ulceration around the anus, apply tannic acid ointment, erythromycin ointment, sesame oil and so on. 8. Strengthen eye, ear and nose care to prevent vomiting and aspiration. 9. Pay attention to the situation of vomiting, defecation and urination. 10. Record the number of times, color, character, smell and its mixture of feces every day. 11. Observe the systemic symptoms of the children in detail, measure the body temperature on time, and pay attention to the occurrence of severe and variable symptoms.