Moxifloxacin is usually used for 3 days to see results, and a course of treatment is usually given in 7 days. Moxifloxacin is a relatively new synthetic quinolone antibacterial drug. The advantages of this drug include broad antibacterial spectrum, strong antibacterial properties, short half-life, not easy to produce drug resistance, effective against common drug-resistant bacteria, and fewer adverse reactions. It can be used to treat respiratory tract infections such as community-acquired pneumonia caused by S. aureus, acute exacerbations of chronic bronchitis, and skin and soft tissue infections. The drug is usually effective in 3 days and is recommended to be taken for 7 days as a course of treatment. If the treatment is incomplete, the duration of treatment can be extended according to the doctor’s instructions, but the duration usually does not exceed 14 days. Taking the drug may appear dizziness, drowsiness and other side effects, it is recommended that patients follow the doctor’s instructions to take, take appropriate rest after taking the drug, pay attention to a light diet during the drug.