I wish you were right, Thirsty, and that we could have 100% faith in our doctors, nurses and health services. That would be fantastic.
I think condemning alternative therapies out of hand is not necessary. Complementary therapies: they will complement the other more mainstream therapies that are on offer. Some of these therapies can be self-administered and are a way for an individual to help him or herself in a positive way, to take responsibility for his or her own well-being.
I don't think anyone posting on this thread has suggested that alternative complementary therapies should replace conventional medicine. I'm very glad to be offered antibiotics when I have an infection. Don't let us forget though that antibiotics are used too freely, and because of this, are self-limiting and may have to become less available at the drop of a hat.
Why have diabetics been given erroneous advice for a very long time? Simple - it's because mistakes are made, even by doctors; the body of scientific knowledge evolves, and doctors learn.
There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy - or words to that effect! Let's keep an open mind.