So I suppose my really specific question boils down to two parts (which themselves have multiple parts):
1. Is there a substance that a) could reasonably be used as a pre-operative antiseptic; b) has a strong, distinct smell; and c) is available over the counter in a form that at least has a similarly strong smell to whatever's used in actual surgeries?
2. Is there another substance that would a) reasonably be found in a decent first-aid kit or otherwise as a common over-the-counter antiseptic; b) hurt more than the above substance when applied to a wound; and c) have a different smell than the above substance?
I've read about alcohol, iodine, and antiseptics in general on Wikipedia and Googled stuff like "what does iodine smell like" and "antiseptics that sting" without much luck because, again, this is a weirdly specific question. I also found a couple good pages about antiseptics, but what I'm looking for--especially about smells--doesn't really show up.