Izzy has the right idea--you'll never be able to repackage a 15 gram package of polysporin into anything resembling a _sterile_ pack without some know-how and a flow hood <img src="/images/graemlins/smile.gif" alt="" />
That being said, if you had access to sterile needles and syringes, you...nevermind. It's just not practical. Try minimus.biz website for single _anythings_.
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Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein