The Facebook Qigong Distant Energy Healing page has over 197,000 fans. You can read thousands of comments by people who have posted how the free sessions have helped them overcome pain and many serious illnesses. You can see people’s first and last names who have posted the comments. Mark can discount the reports but it is difficult to ignore so many people’s experiences.
There have been dozens of clinical studies showing the effectiveness of distant healing and prayer. You can do a search for "A review of distant healing studies" by Daniel Benor MD. It is a review of 61 studies of distant healing.
Distant energy healing may help the mind/body to come into energetic balance so that the innate healing power of the mind/body can heal itself. Traditional Chinese Medicine teaches when the energy in the body is flowing properly then good health and well-being is the result.
Everyone should see their medical doctors for medical conditions especially for serious diseases such as cancer etc. This kind of work is meant only as a complement to regular medical treatment and not a substitute for medical treatment of any kind. You should seek the advice of your doctor before doing this modality.