Allergic enteritis is a common problem in children under one year old and can be divided into acute diarrhea chronic diarrhea. Acute diarrhea is common when complementary foods are added and formula is changed, usually when breast milk is not enough or the mother cannot breastfeed during the day at work and infant formula is added, the most common complementary foods added are strawberries, tomatoes, mangoes, kiwi, pumpkin, melon and cantaloupe. Chronic diarrhea is acute diarrhea through dietary adjustment is not completely normal, each stool is more frequent, unformed or thin stool. Since it is allergic enteritis, the child usually has some characteristics of allergy in general, the first characteristic is: itching! Basically, when a child is about 2-3 months old, he or she will have itchy eyes – rubbing eyes and tearing in the wind; itchy nose: rubbing nose; itchy ears: digging ears, tugging ears; itchy scalp: scratching head, rubbing head against adults. The second characteristic is: crying! Crying is the most common problem, and if the child is accompanied by colic, the child will usually cry regularly, more than three times a week, for 2-3 hours each time. Acute diarrhea is sometimes accompanied by mucopurulent stools, and stool tests will show a large number of white and red blood cells. It is often diagnosed as bacterial dysentery and treated with antimicrobials. Hundreds of people nationwide are misdiagnosed every day and are treated with a variety of antimicrobials and even intravenous fluids. The earlier a child is treated with antimicrobials, the more chance the child has of developing allergic diseases and getting other allergic diseases. How to distinguish between dysentery and allergic enteritis: 1. Dysentery must have an infectious source, that is, adults with diarrhea, because the child’s diet is very single, mainly based on breast milk or formula, there is little chance of transmitting dysentery. Once a parent told me sadly, the doctor said our house is too dirty, everything in the house is disinfected with 84 disinfectant, hands have peeled, the child still dysentery is not good. Allergic enteritis and the addition of complementary foods or change of milk as a cause. 2, dysentery is an infectious disease, since the intestinal mucosa infection is very strong, the child will certainly appear fever or white blood cell increase. The child will have a fever or increased white blood cells. allergic enteritis as an allergic disease, generally eosinophils will increase. 3, dysentery is caused by dysentery bacillus infection, culture will have dysentery bacillus growth, the latter stool smear can be seen bacillus, while allergic enteritis is not. 4, dysentery as a continuous inflammation, the child will have the feeling of incomplete poop, stool always have, and the child cries obviously. Whereas allergic enteritis mainly pulls after eating and cries before pulling, the child will be happy after pulling and rarely has persistent crying.5. Dysentery as a bacterial infectious disease, antimicrobial agents are very effective. While allergic enteritis as an allergic disease, replacing the non-allergic formula will generally be significantly relieved in 3 days.