Just a quick add on to prior post, Betadine (povidone/iodine) is a true germicide, meaning that it kills pathogens outright, which is why it's used by surgeons as an antiseptic scrub. Neosporin or any antibiotic cream for that matter does not necessarily kill pathogens. Many simply inhibit their growth, while others have been around for so long that antibiotic resistance has developed. Remember, antibiotics originated from bacteria as a means to kill or inhibit their competition. As a result pathogens have been selected for resistance over time. This is not the case with a true germicide.