Acupuncture for Frequent Migraine: A Randomized, Patient/Assessor Blinded, Controlled Trial with One-Year Follow-Up

Table 2

Method of sham acupuncture.

	Local sham points on the scalp, face, and neck	Distal sham points on the four extremities
Technique	Noninvasive, using a blunted cocktail-stick	Minimal acupuncture, 2 mm depth insertion
Sham point	1-2 cm away from the real acupoints	1-2 cm away from the real individual distal supplementary points according to the syndrome differentiation
Stimulation	The stick was tapped	No needling manipulation, avoid De Qi