When the baby due to rotavirus infection caused by diarrhea, you can eat liquid or semi-liquid food, can also follow the doctor’s advice to take related drugs for treatment, such as montelukast. 1. Fluid or semi-liquid diet: when the baby has rotavirus diarrhea, the diet should be based on fluids and semi-liquid food, should be differentiated according to the baby’s age, older babies can eat some millet porridge, rice paste, etc., younger babies, you can insist on breastfeeding or formula feeding. If necessary, oral rehydration salts can be added to prevent dehydration. 2. Oral medication: rotavirus diarrhea children can also take oral antidiarrheal drugs under the guidance of the doctor, such as montelukast, probiotics, such as bacillus subtilis bacillus granules, bifidobacterium bifidum live bacterial preparations, and so on. Carry on the treatment. It is recommended that children strictly follow the doctor’s instructions for medication, actively cooperate with the doctor’s guidance treatment, pay attention to monitoring the condition in life, once the condition worsens, the need for timely medical treatment.