You should stock up on Fish meds so you can make sure your aquarium is healthy for that rainy day.
http://www.fishmoxfishflex.com/index.php/fish-antibiotics.html
You know I almost suggested that, its pharmaceutical grade (how long to they ban that). Wouldn't want to take it unless I had to, but given no other options its better than dying from a splinter.
I keep a couple bottles around for the aquariums (and yes I mean real, largeish aquariums) but they will be one of the first things to go in the BOB if things get crazy.
Cost effective too
http://www.thatpetplace.com/fish-mox-100pk-250-mg-tablet
http://www.thatpetplace.com/fish-pen-250-mg-60-count?sc=10&category=2758
http://www.thatpetplace.com/fish-cillin-250mg-100-tablets?sc=10&category=2758
Just make very sure that you and your family are not allergic to these antibiotics and keep records of any dosages given by physicians for past ailments.