If the clinical symptoms of acute gastroenteritis during breastfeeding are not very obvious, you can observe it first and do not need to use any medication for the time being, and you can also breastfeed normally. However, you should eat a light diet, preferably soft, warm food and preferably less and more meals, and ensure food safety to avoid aggravation of acute gastroenteritis. If the clinical symptoms of acute gastroenteritis are obvious, such as diarrhea, nausea, vomiting, abdominal pain, breastfeeding should be suspended and milk powder can be used instead, and active treatment: a. Acute treatment: rehydration is the main treatment in the acute phase, the method, amount and speed of rehydration should be determined according to the degree of dehydration, patients with mild dehydration can be given oral rehydration salts, patients with severe dehydration need intravenous rehydration, the situation Patients with mild dehydration can be given oral rehydration salts. Second, drug therapy: 1, intestinal mucosa protectors and adsorbents: common montmorillonite, can adsorb intestinal toxins, protect the gastric mucosa, and in acute diarrhea can shorten the duration of diarrhea, reduce the frequency of diarrhea; 2, probiotic preparations: such as Saccharomyces boulardii, Lactobacillus rhamnosus, Bifidobacterium and other intestinal probiotics composed of special active microbial preparations, has significant efficacy in watery diarrhea caused by viral infection, but No significant efficacy for diarrhea caused by invasive bacteria; 3. Antibacterial drugs: commonly used antibiotics are fluoroquinolones, such as norfloxacin, ciprofloxacin, etc., which are effective for most bacterial acute gastroenteritis. However, pregnant and lactating women need to inform their doctors to avoid drugs with obvious toxicity to the fetus. They can choose penicillin, three generations of cephalosporins such as ceftriaxone and other drugs that have less impact on the fetus and pregnant women; 4. Antidiarrheal drugs: common loperamide, which can inhibit intestinal peristalsis to reduce diarrhea, but is prohibited for patients with inflammatory diarrhea caused by infections such as fever or obvious abdominal pain, as well as bloody diarrhea and for children.