Quackery refers to the promotion of unproven or fraudulent medical practices, often by individuals who lack proper qualifications. This can include various treatments and remedies that claim to cure diseases without scientific backing, leading to potential harm to patients. Common examples of quackery include miracle cures and dubious health products that exploit people's hopes for better health. The impact of quackery can be significant, as it not only misleads individuals but can also divert them from seeking legitimate medical care. Awareness and education about pseudoscience and fraudulent health claims are essential in combating the spread of quackery and protecting public health.