Levofloxacin can be used for the treatment of sinusitis caused by sensitive bacteria and should be used as prescribed by the doctor. Levofloxacin is a quinolone antimicrobial drug that can be used for pneumonia caused by sensitive bacteria, acute bacterial sinusitis, bronchitis, skin and skin structure infections, chronic bacterial prostatitis, urinary tract infections, . Pyelonephritis and other diseases. Adverse reactions to levofloxacin can be seen in tendinopathy, tendon rupture, prolongation of the QT interval, allergic reactions, and hepatotoxicity. The drug is contraindicated in pregnant and breastfeeding women, people with hypersensitivity to quinolones, people under 18 years of age. Sinusitis caused by bacterial infection, the pathogen should be clarified, and sensitive antibiotics should be selected for treatment, if the causative organism is not clarified, broad-spectrum antibiotics can be selected. The medication should be used rationally under the guidance of a doctor.