For Streptococcus pneumoniae infections in 9-year-old children, antibiotics should be used until 5 to 7 days after the temperature returns to normal. Discontinuing the medication too soon does not completely control the infection. Streptococcus pneumoniae is the main causative agent of lobar pneumonia, but it more often causes bronchopneumonia in infants and young children. Most infections have a rapid onset and are characterized by high fever, headache, chills, chest pain, and malaise. For 9-year-old children, after infection with Streptococcus pneumoniae pneumonia, penicillins or cephalosporins are usually used first, until 5-7 days after the body temperature is normalized. The dose may also be increased in critically ill children according to the drug’s instructions. Usually, when the drug does not work for 3 days, other antibiotics are switched according to the results of bacterial culture and drug resistance. It is recommended that children should get enough sleep and not stay up late during a Streptococcus pneumoniae infection, as well as maintain a diet high in calories and protein, and avoid oily and spicy foods. Nine-year-old children infected with Streptococcus pneumoniae are recommended to go to a regular hospital for examination and treatment, so as to avoid delaying the disease.