The word "medication" refers to any substance or treatment that is used to prevent, cure, or alleviate the symptoms of a disease, illness or medical condition. This can include prescription drugs, over-the-counter medications, vitamins, supplements or herbal remedies. Medications can be administered in various ways, such as orally (by mouth), topically (applied to the skin), or through injection. The purpose of medication is to help improve a person's health and well-being.