( 1 ) The visual levels in visual chart were improved in the abdominal acupuncture group and auricular point group , and the effects 20 min after the first treatment , after 5 weeks ' and 3 months ' treatment in the abdominal acupuncture group were superior to those in the auricular point group ( 4.780.16 vs 4.690.22 , P < 0.01 ; 4.850.16 vs 4.790.21 , P < 0.05 ; 4.890.13 vs 4.710.25 , P < 0.01 ) .