When using cephalosporins in patients with pneumonia, the medication should be selected according to the type of pneumonia and the infecting bacteria. For pneumonia caused by Streptococcus pneumoniae infection, you can choose first- and second-generation cephalosporins, such as cefuroxime. For pneumonia caused by Gram-negative bacterial infections, third- and fourth-generation cephalosporins, such as cefoperazone, ceftriaxone, cefepime, etc., are usually chosen. For bronchitis, most of them are due to Gram-positive bacterial infections, so when choosing cephalosporin antibiotics, you can choose first- and second-generation cephalosporins, and at the same time, you can choose sensitive cephalosporin antibiotics to control the infection according to the results of sputum bacterial culture and drug sensitivity test.