if there is something seriously wrong with your health, the best thing to do is to figure out what it is and then address it. Use herbs, vitamins, drugs, chiropractic,rife, chelation, whatever you feel comfortable using and whatever is ultimately effective.
But I think it's extremely irresponsible to not do anything at all and just say "o the doctrine will take care of it"
The doctrine is just a way to induce the placebo effect. And quite frankly, the placebo effect can be very powerful. Look at any pharmaceutical study and you will see it is effective up to 30%. That's much more effective than most drugs.
But you shouldn't just rely on the placebo effect. that is not a responsible approach to your health in my opinion