The best thing you can do is keep informed, and keep others around you informed. Many people don't realize this is such a rapidly progressing issue. In fact, many people may not even know that they are improperly taking their Antibiotics and what the side effects are to doing so.

If more informed I feel like the public could do a bit better at turning down Antibiotics when they aren't necessary, and using them properly when they are. Just that action would go a long way.

Edit- I would also like to add that a lot of people don't realize just how easy it is to get an infection, and education could go a long way in keeping it from happening in the first place. It reminds me of that guy on reddit with the horrible case of necrotizing fasciitis that he ended up with after retrieving a football from a koi pond. His day by day imgur chronicle was both interesting and horrifying.