Bactrim is the trade name and generic name of Mupirocin Ointment, which is used to treat urethral ulcers when they are the result of a bacterial infection. Mupirocin ointment is an antibiotic that is mainly used to treat skin infections caused by gram-positive cocci. Urethral ulcers can be seen in a variety of conditions such as urethritis, genital herpes, and syphilis. If the urethral ulcers are caused by diseases such as urethritis and glans infections caused by gram-positive bacteria, mupirocin ointment can be used for treatment. In the case of urethral ulcers caused by genital herpes, antiviral medications such as acyclovir and valacyclovir are used as prescribed by the doctor, and mupirocin ointment can be used in the presence of secondary bacterial infections. In the case of urethral ulcers due to syphilis, treatment is primarily with penicillins, such as benzylpenicillin, procaine aqueous penicillin G. Mupirocin ointment can cause local burning sensation, stinging sensation, itching and other adverse reactions, it is recommended to follow the doctor’s instructions, and is prohibited for those who are allergic to the drug.