Baby acute gastritis with vomiting

Patient's question:

My baby is over two years old. The baby vomits in the morning, and I suspect it's acute gastritis. Could you please ask the doctor what to do about the baby's vomiting with acute gastritis? What kind of medicine is effective for children with acute gastritis? Thank you very much

Doctor's answer:

Acute gastroenteritis in children is a common disease among infants under 2 years old (also known as infantile diarrhea). Its main symptom is diarrhea, which can be caused by improper diet and infections within or outside the intestines. Intestinal infections are most commonly caused by pathogenic Escherichia coli enteritis. Artificial feeding is more likely to lead to the disease compared to breastfeeding. This is not only because cow's milk is more prone to contamination but also because breast milk contains a mucopolysaccharide that promotes the growth of bifidobacteria. Bifidobacteria can inhibit the growth of Escherichia coli. In addition to bacterial dysentery, cholera, and typhoid fever, other bacterial, viral, parasitic, fungal, and unexplained infectious diarrhea can all be referred to as enteritis.
For children under 2 years old, if they develop epidemic diarrhea in the autumn and winter, with egg-like or white watery stools without blood or pus, the possibility of rotavirus enteritis is high. If it occurs in the summer, the likelihood of pathogenic Escherichia coli is greater. If the stool contains mucus or blood, bacterial dysentery, jejunal Campylobacter, or typhoid Salmonella enteritis should be considered.
(1) For mild diarrhea, avoid indigestible foods and high-fat diets. Temporarily drink rice porridge, soy milk, yogurt, or skim milk. Breastfeeding infants should shorten feeding times. For severe diarrhea, seek immediate hospital treatment. For mild diarrhea treated at home, oral rehydration salts (available at pharmacies) can be used. Mix each packet with 500 milliliters of water and administer in small, frequent doses. For mild dehydration, give 50 milliliters per kilogram of body weight per day; for moderate dehydration, give 80–100 milliliters per kilogram of body weight per day. Gradually return to normal diet 3–4 days after vomiting and diarrhea improve.
(2) When a child develops enteritis, it is best to perform a stool test or culture if possible to confirm the diagnosis. For Escherichia coli enteritis, polymyxin B can be used at a dose of 50,000–100,000 units per kilogram of body weight per day, divided into 3–4 doses; or kanamycin at a dose of 50 milligrams per kilogram of body weight per day, divided into 3–4 doses. The course of treatment should not exceed 7 days to prevent dysbiosis.
(3) For jejunal Campylobacter enteritis, erythromycin ethylsuccinate can be used at a dose of 30–50 milligrams per kilogram of body weight per day, divided into 3–4 doses.
(4) For fungal enteritis, clotrimazole can be used at a dose of 20–60 milligrams per kilogram of body weight per day, divided into 3 doses.
(5) For viral enteritis, antibiotics are ineffective. Chinese herbal medicine Zhuodan Zhixie Ling can be used. For children aged 1–3 years, give 5 milliliters per dose, 3 times per day; for children aged 3–7 years, give 10 milliliters per dose, 3 times per day, for the best effect.