Sigh. Are you being willfully awkward or do you really not understand? Not that I have to prove the bleedin' obvious, but this is from the National Fibromyalgia Association. In acupuncture studies, the placebo effect can be especially powerful, researchers note. In these studies, sham treatments involve needles that dont actually pierce the skin, or that are not placed in the correct places. Just the expectation among patient and doctor that the patient will get better makes the patient get better, Martin explains.