| Lu (2019, China) | 88 (44/44) | Intradermal needle | Cuanzhu(BL2)Sizhukong(TE23)Sibai(ST2)Yuyao(EX-HN4)Taiyang(EX-HN5) | 3 times per week, for 2 weeks (total 6 times) | 1-2 days | AT+AD | AD (0.1% sodium hyaluronate) | 1. Total efficacy rate | 1. I>C97.73%>84.09%(P<0.05) | N.R |
| Ma (2018, China) | 80 (40/40) | Thumb-tack needle | ① Cuanzhu(BL2), Sizhukong(TE23), Sibai(ST2)② Yintang(EX-HN3), Yuyao(EX-HN4), Taiyang(EX-HN5) | Once a week(①, ② were used alternately), for 2 weeks (total 2 times) | 2-3 days | Subcutaneous embedding of thumb-tack needle | AD | 1. Subjective symptom score2. SIT3. BUT4. FL5. Total efficacy rate | After 2 weeks from the final treatment,1. I>C0.39±0.30<0.51±0.27(P<0.05)2. I>C13.03±1.33>11.48±0.51(P<0.05)3. I>C12.67±3.46>9.41±1.22(P<0.05)4. I>C0.32±0.10><0.58±0.25(P<0.05)5. I>C90.0%>85.0%(P<0.05) | N.R |
| Lee (2017, Korea) | 100 (50/50) | Auricular acupuncture machine (Acupuctoscope system B & AM3D, Acumedic Company, UK) | Shenmen(TF4)Zero(H1)Liver(CO12)Master Sensorial(Eye, L5) | 2 times a week, for 4 weeks (total 8 times) | 30 sec. per each point (total 4 min.) | Acupressure with ES | Acupressure without ES | 1. Subjective symptom score2. BUT3. SIT | 1, I<C(P<0.05)2, I>C(P<0.05)3. I>C(P<0.05) | No adverse event. Minor adverse effects(2 patients, mild pricking pain) |
| Wu (2016, China) | 40 (20/20) | Thumb-tack needle | Cuanzhu(BL 2)Sibai(ST 2)Taiyang(EX-HN 5) | Every other day, for 2 weeks (total 7 times) | 1 day | Subcutaneous embedding of thumb-tack needle | AD | 1. OSDI2. SIT3. BUT | 1, I=C(P<0.05)2, I=C(P<0.05)3. I=C(P<0.05) | N.R |