It's all a lie. As long as you have money, go in boldly and be cheated as much as you have. But people don't say it's a lie, they just tell you the truth of health preservation euphemistically. You don't understand anyway. The key is to grasp your imaginary heart that can cure diseases. As long as you are willing to take the bait, health beauticians will start to make money. At first, they will give you various discounts for you to try for free, and then you will start spending several times by credit card.
If you want to cure the disease, you should go to the hospital. The right medicine is the best way.
The above answers are for reference only, and I hope they will help you.