Traditional, folk or holistic medicines are a great thing.
I recommend a few items for the family medicine cabinet.
One such is castor oil. Another is cod liver oil. And probiotics.
Castor oil has been called the "palm of Christ," thanks to its healing capabilities.
You can read of it here: http://en.wikipedia.org/wiki/Castor_oil.
Yours truly has a bad back, and a castor oil back massage seems to really help.