There is no fixed period for taking pediatric cephalosporin, and the duration of medication generally needs to be adjusted according to the efficacy and the presence of side effects. Cephalosporin belongs to β-lactam antibiotics, mainly used to treat inflammatory reactions caused by sensitive bacteria, often used for pediatric respiratory system diseases, such as common acute bronchitis, bronchopneumonia, acute laryngitis or wheezing bronchitis; also used for pediatric digestive system diseases, such as acute gastroenteritis, bacterial enteritis, etc.; also used for urinary system diseases, such as acute urinary system infection, pediatric pyelonephritis . However, it is not recommended to take it privately for a long time to avoid the formation of multi-drug resistant bacteria or fungal infections due to unreasonable application of antibiotics. Therefore, children need to take cephalosporin as prescribed by the doctor. If the situation does not improve after 3 days of use, they need to go to the pediatric department of the hospital as soon as possible. During the period of taking cephalosporin, children should have a light and easy-to-digest diet and drink more water to facilitate the metabolism of the drug.