Taking levofloxacin after suffering from a UTI does not work, it is likely that the medication is not the right situation, because levofloxacin is only useful for infections within the antimicrobial spectrum. Levofloxacin, as a more commonly used antibiotic, is effective in treating other infections such as urethritis caused by sensitive bacteria, and if it is ineffective, it is likely that the source of the urethritis infection is not within the antimicrobial spectrum of levofloxacin. You can go to the hospital for bacterial culture and drug sensitivity test to identify the source of infection and then use appropriate antibiotics for treatment, such as amoxicillin, metronidazole and so on. The contraindications for levofloxacin are not clear, but adverse reactions such as nausea and vomiting may occur after use, which are usually relieved after stopping the drug. If the situation of urethritis, you should immediately go to the hospital for examination, identify the situation and actively cooperate with the doctor’s treatment, and under the guidance of the doctor to carry out the appropriate treatment, do not indiscriminate use of drugs, so as not to miss the opportunity of the disease.