Step-by-step explanation:
First, we will clarify the difference between therapy or alternative medicine and complementary medicine:
Alternative medicine
It refers to the one that is used instead of conventional medicine. An example is the use of a dietary supplement as a cancer treatment instead of the chemotherapy recommended by the oncologist.
Complementary medicine
That which is used in conjunction with conventional medicine. An example is the use of relaxation to mitigate the anxiety that patients may suffer during the application of cancer treatments.