When alternative therapies are used in place of conventional medicine, it is considered to be alternative medicine. When alternative therapies are used in addition to conventional medicine, they are considered to be complementary medicine. You Might Also Like Hypnotherapy May 14, 2014 Osteopathy works with the bones, nerves, blood vessels, and related tissues. October 21, 2019 Light Therapy consists of exposure to specific ranges of light wavelengths October 1, 2015