Neosporin is a topical antibiotic ointment commonly used to prevent infections in minor cuts, scrapes, and burns. It contains three active ingredients: bacitracin, neomycin, and polymyxin B, which work together to kill bacteria and promote healing. This ointment is applied directly to the affected area after cleaning it with soap and water. Using Neosporin can help reduce the risk of infection and speed up the healing process, making it a popular choice for first aid in homes and medical settings.