Clinical efficacy of electromagnetic field therapy combined with traditional Chinese pain-reducing paste in myofascial pain syndrome

Figure 3 Changes in the pain rating index, sensory pain and affective pain. A: Pain rating index (PRI) scores; B: PRI sensory pain scores; C: PRI affective pain scores. T0 = pretest, T1 = end of the first week after receiving treatment, T2 = end of the second week after receiving treatment, T3 = end of the first week after completing treatment, T4 = end of the fourth week after completing treatment. ^aP < 0.01, experimental group (EG) vs control group (CG); ^bP < 0.05, EG vs CG. CG: Control group; EG: Experimental group; PRI: Pain rating index.