 Checkup on Health with Chris Whitting. Is your home prepared for an emergency? Dr. James Hubbard is the author of the book Living Ready Pocket Manual First Aid, and he has some helpful tips. First off, if you have any specific medical problems, keep a little extra medicine handy. Fill your refill before it completely runs out. Have a little bit on store. You need to have a way to have clean water. There are several ways you can do that, including boiling and other ways.