Complementary treatments in rheumatic diseases.

Which complementary therapies are effective for reducing pain in which rheumatic conditions? This is the question this article addresses, with particular emphasis on treatments that are, according to the totality of the available trial data, likely to be effective, and with a focus on six conditions relevant to rheumatologists: back pain, fibromyalgia, myofascial pain, neck pain, osteoarthritis, and rheumatoid arthritis.