Cephalosporin antibiotics can be used to prevent or treat bacterial infections, and the duration of administration is related to the disease suffered and the purpose of the medication. Cephalosporin antibiotics are divided into first generation, second generation, third generation and fourth generation cephalosporins, which are usually used to prevent bacterial infections or treat bacterial infections, and are usually administered for no more than 24 hours for prophylactic treatment; patients who are used to treat bacterial infections generally consider stopping the medication 72 hours after their body temperature returns to normal, and the specific duration of medication is related to the diseases they suffer from, such as otitis media patients need to be given cephalosporin antibiotics intravenously for 3-5 days For example, patients with otitis media need to be given cephalosporin antibiotics intravenously for 3-5 days, and after the symptoms are controlled, they should be given orally for a total of 7-10 days; patients with bronchitis are recommended to take the drug for 3-4 days; patients with sinusitis can take the drug for 7-10 days. Cephalosporin antibiotics should not be used for a long time, otherwise it is easy to produce bacterial resistance or secondary infections, and patients should be treated symptomatically according to the disease they are suffering from at the same time as anti-infection treatment.