Stone Age man was pretty good at trepanning — boring holes into the skull, which supposedly cured headaches and epilepsy.
England was full of doctors insisting that blood letting could get rid
of ‘humors’ — bodily substances such as bile on which our health
supposedly depended. We now know this is rubbish. So modern medicine gets it right?
Not necessarily — in fact, there are many tests and treatments being used that don’t actually work. Indeed,
the problem is so enormous that in the U.S., dozens of major medical
associations — including the American College of Cardiology — have
launched a campaign to encourage doctors and patients not to use any of
the 90 widely used procedures it has found to be useless. This
includes routine ECGs (electrocardiograms) to check the heart’s
electrical activity in patients with no symptoms, or antibiotics for
many kinds of ear infection.
Source - Daily Mail