I think you mean "preventive" care.
What does your doctor wife do to cure colds? Probably what everyone does - drink lots of fluids and get some rest.
If people would quit visiting their doctors everytime they get a sniffle or ask for a CAT scan everytime they get a headache, all of our premiums would drop in half.
What??? Next your going to say that antibiotics are just for infections and are not suppose to be prescribed so the patient feels that they got their money's worth.