After the first treatment , the score of VAS was decreased significantly in the scaping group ( P < 0.01 ) , but there was no significant difference in the acupuncture group compared with those before treatment ( P > 0.05 ) ; the score of VAS in the scaping group after the first treatment was lower than that in the acupuncture group ( 3.66 + / - 0.74 vs 5.43 + / - 0.35 , P < 0.01 ) .