Treatment of bacterial fever in adults is based on anti-infective treatment with amoxicillin and roxithromycin and symptomatic supportive therapy such as antipyretic and rehydration. Drugs should be used under the guidance of a doctor. 1. Anti-infective treatment: community-acquired infections with amoxicillin, cefixime, roxithromycin, levofloxacin and other anti-infective, hospital-acquired infections or infections in immunocompromised people with moxifloxacin, ceftazidime, meloxicillin, piperacillin tazobactam, and other broad-spectrum antibiotics, feasible sputum culture, alveolar lavage culture, blood culture, etc., and according to the results of the pathology of the selection of sensitive antibacterial drugs. 2. Symptomatic supportive treatment: oral ibuprofen or acetaminophen can be taken to reduce fever when the body temperature exceeds 38.5 degrees, and the symptomatic supportive treatment can be supplemented with adequate fluids, balanced nutrition in diet and attention to rest. When bacterial fever occurs, it is necessary to consult a doctor in time, complete the relevant auxiliary examination and then treat the cause under the guidance of a specialist.