Pediatric autumn diarrhea is a diarrhea caused by rotavirus infection. Diarrhea caused by this virus can occur throughout the year, but the highest incidence occurs in October to November each year in autumn and can cause epidemics, so it is called autumn diarrhea. The disease mostly occurs in children aged 6 months to 2 years old, with early fever, vomiting, urgent and large amount of diarrhea, initially grayish white, soon turning into yellow dilute watery, which can lead to dehydration, electrolyte disorders, or even induce fulminant myocarditis and death. Therefore, once the disease develops, it should be treated correctly and promptly, and the principles are as follows: 1. Prevention and correction of dehydration: this disease is very easy to cause dehydration because of the large amount of diarrhea, which is manifested by poor mental health, dry mouth and more drinking, less urination, and sunken eyes. To prevent the occurrence of dehydration, from the beginning of diarrhea, we should drink a lot of sugar and salt water, the preparation ratio is about 500 ml of plain water (1 pound bottle), add 10 grams of cane sugar (two small spoons), 1.75 grams of salt (half a beer bottle cap) or buy hospital-prepared ORS liquid, feed 5 ml for an average of 1 to 2 minutes can effectively prevent dehydration, for mild dehydration can also be corrected, but if your child vomits Frequent or severe dehydration, you need to immediately go to the hospital intravenous rehydration; 2, continue the diet: diarrhea patients who fast or reduce diet can affect the repair of intestinal mucosa, resulting in diarrhea is prolonged. Therefore, the diet should be continued. But because the digestive function is weakened when diarrhea, the initial can give some liquid, semi-liquid easily digestible food in small amounts several times, and gradually transition to a normal diet. And we should pay attention to the food we are used to, do not replace the new food; 3, reasonable medication: autumn diarrhea is a self-limiting disease, such as the absence of complications 5 to 10 days can be self-healing. Although it is a viral infection, the application of antiviral drugs is not significantly effective. The application of antimicrobial agents is not only ineffective, but will kill the normal bacteria in the intestinal tract, causing dysbiosis, resulting in prolonged diarrhea, so do not abuse. The correct medication should be the use of gastrointestinal mucosa protectors such as Simethicone and micro-ecological regulators such as Gold Diflucan and Bacteriostat. Traditional Chinese medicine has also accumulated rich experience in the treatment of this disease, with acupuncture point external application, Chinese medicine rectal drip and massage methods.