Whether or not it is effective, the use of homeopathy is common among people with cancer. A 2019 study looked at the use of complementary and alternative medicine among cancer patients at a single institution.
Of the different forms used (including osteopathy, homeopathy, acupuncture, healing touch, magnetism, Chinese medicine, and more), homeopathy was the second most common modality, used by 39% of those who questioned.
For the majority of people, these treatments were used primarily to prevent or treat the side effects of conventional cancer treatments. However, a small number of people used homeopathic remedies to improve their immune system or to treat cancer directly.