The main antibiotics that children can use are penicillins, cephalosporins, and macrolides. 1. Penicillins: the most typical drug is penicillin, and others include ampicillin, ampicillin sulbactam, and so on. 2. Cephalosporins are divided into five generations: ① the first generation of drugs, including cefadroxil and cephradine. The second generation of drugs include cefuroxime and cefaclor. ③Third-generation drugs include ceftriaxone and cefoperazone and so on. ④Fourth-generation drugs are mainly cefepime and so on. ⑤ Fifth generation drugs include cefepime. 3. Macrolides are mainly erythromycin, clindamycin, azithromycin and roxithromycin. Children’s medication should be under the guidance of a doctor and should not be used without authorization.