In the healthcare world over, people have used various therapeutic modalities. There is evidence that many people have used alternative, complementary and integrative medicine with great success. This paper defines alternative medicine, complementary medicine, and integrative medicine. Besides the essay shows the difference between the terms and describe how conventional medicine plays a significant role in all these three terms. Alternative medicine refers to therapeutic modality, which is not taught in traditional medical schools. It is meant to offer various alternatives which are contrary to what is taught in western medicine. It is used in place of conventional medicine. Additionally, alternative medicine takes the place of conventional medicine. On the other hand, complementary medicine involves the use of conventional medicine