If men have redness and swelling of the urethra, it is recommended to visit the nearest hospital to identify the cause and treat it symptomatically. If the redness and swelling are mild or not accompanied by urinary symptoms, no difficulty in urination, back pain, etc., they can be treated on their own. 1. apply local antibiotic ointment topically, choose Bactrim ointment topically, choose erythromycin ointment topically. 2. keep the local clean and dry, dry the local residual urine after urination to avoid residual urine stains and stimulate the expansion of inflammation. 3. if accompanied by pain in the urethra, or urinary urgency, painful urination, etc. symptoms, it is recommended to take levofloxacin hydrochloride capsule orally, 1 capsule, 3 times a day for 3 days. 4. If there is no relief of symptoms after 3 days of the above treatment, it is recommended to stop the use of related drugs, check nearby and adjust the drugs. If the symptoms are heavily and gradually reduced and improved, the drug can be taken orally or topically for more than 5 consecutive days until the symptoms disappear completely and then stop.