Local abrasions do not require topical application of Bactrim ointment if there is no obvious infection in the patient’s wound. Bactrim ointment is a commonly used antibiotic ointment in clinical practice. For most patients, the application of iodophor and alcohol for local disinfection after the abrasion, and then a simple local bandage can play a protective role. There is no need to apply additional ointments like antibiotics to prevent secondary infections from occurring. Of course, some patients who are afraid of scarring can apply some recombinant human epidermal growth factor gel and other drugs to promote wound healing. But if the patient is more serious, secondary to some infection, you can apply Bactrim ointment, or erythromycin ointment for external application. At the same time, the application of alcohol, iodophor, daily disinfection.