You should not take Byflux for anti-infection treatment for more than 14 days. The drug name of Byfloxacin is moxifloxacin hydrochloride, a broad-spectrum antibiotic of the quinolone class, which can be used for respiratory infections, skin and soft tissue infections caused by sensitive bacteria, mycoplasma and chlamydia. Treatment of respiratory infections, such as community-acquired pneumonia and acute exacerbations of chronic bronchitis, is usually effective in 5-7 days, and severe respiratory infections require 10-14 days of use. For the treatment of acute suppurative sinusitis, the drug can be taken for 7 consecutive days. However, if patients take Byflux for a long time, they are prone to dysbiosis, secondary mycobacterial infections, diarrhea and other symptoms. In addition, Bayflor can affect the development of cartilage, so it is prohibited for adolescents under 18 years old. Some patients may experience nausea and other gastrointestinal reactions after taking Byfugreek, so it is recommended to take it half an hour after meals.