Quackery (noun)

The promotion or practice of fraudulent or ineffective medical treatments.

Origin:

From middle english quackerie, from quack "a fraudulent doctor", of imitative origin.

Examples:

1. The quackery of the medicine man was exposed when his cure for cancer proved to be nothing more than sugar pills.
2. The quackery of the healer was a danger to the public and was finally shut down by the authorities.
3. The quackery of the snake oil salesman was infamous, as he sold bottles of water as a cure for all ills.
4. The quackery of the alternative medicine practitioner was exposed by the scientific community.
5. The quackery of the psychic was finally revealed when it was discovered that she was using sleight of hand to produce her miracles.