Ice, ice, baby.
I've suffered from a hamstring pull this year. Because I have a rehab medicine specialist and a physical therapist as a friend, I was able to recuperate and prevent any further injury. Most people, however, don't have that luxury.
Weisenfeld's book is a simple, easy-to-read guide on the common ailments suffered by runners. He doesn't presume extensive medical knowledge, and always refers to doctors when the injuries can't be handled by him. However, as a medical doctor, I myself found his advice to be sound and scientific: I have forgotten the magic of ice as an anti-inflammatory, and this manual reminded me that such a simple solution exists. This book has aged well, and remains to be a reliable aid for runners everywhere.