The phrase "puts on a band-aid" is a rather specific one, so its antonyms would likewise need to be specific. Synonyms for "puts on" include "takes off," "removes," or "disposes of." As for "band-aid," antonyms could be "exposes the wound," "leaves the injury untreated," or "neglects to cover the cut." Each of these actions would have vastly different outcomes, emphasizing the importance of proper wound care. While "puts on a band-aid" may seem like a mundane task, it can make all the difference when it comes to preventing infection and aiding in the healing process.