Neosporin with vs without bacitracin zinc, what's the difference?

NONE: Both worthless. Application to wounds, burns, surgery, or anything does not prevent or cure infections. They are among the most common agents that people are allergic to. They cross-react, so allergy to one often means allergy to the other. They often interfere with wound healing. Their use contributes to emerging antibiotic- resistant bacteria. Each has been "allergen of the year" in different ye