Quackeries refer to fraudulent or unproven medical practices. There are many synonyms for this word, including charlatanism, deception, fraudulence, snake oil, pseudoscience, and chicanery. These words all describe the same thing: fraudulent or misleading medical practices that are not scientifically proven or backed up by proper research. Often, these practices are promoted by unscrupulous individuals or companies looking to make a quick buck by taking advantage of people's health concerns. It is important to be aware of the existence of these quackeries and to do your research before trying any new medical treatment. Always choose reliable sources for health information and consult with qualified healthcare professionals.