Really ? just one official view...

The following article is written by Cape Cod Health as a guide to assisting people finding alternate remedies:

a verbatim reproduction of what they have said at their public web site

Reiki

Reiki is an ancient healing technique used for relaxation and stress reduction. Reiki promotes healing by stimulating the immune system and is thought to help relieve physical and emotional symptoms.
Reiki is safe, non-invasive and can be administered to people of all ages.

The practioner serves as a conduit for “life force energy” that flows through the energy pathways of the body. Practitioners believe that this energy nourishes cells and organs of the body.

There are many Reiki courses offered throughout the world.

BENEFITS

Releases stress
Eases depression and fear
Relieves insomnia
Aids meditation
Assists with healing

WHAT TO EXPECT

The client is fully clothed and lies on a table. Reiki is administered by the practitioner placing her/his hands on or above various parts of the body.

Reiki may initially cause an emotional release (such as laughter and crying), gastric upset, mild nausea, diarrhea, headaches and a body tingling. These reactions are usually temporary and considered part of the healing process.

RESEARCH

Reiki treatment has been found effective in helping every known illness.

It may be used in conjunction with all other medical or therapeutic techniques to relieve side effects and promote quality of life.

COST

The cost varies with practitioner.