Table 2. The VAS at different time points (mean±SD, n=15).

	Baseline	1 min	2 h	24 h	1-month	3-month
Single-point group	7.27±0.96	7.73±1.75	3.00±0.65#	2.93±0.70#	2.73±1.10#	2.67±0.72#
Two-point group	7.47±0.99	1.93±1.49* #	2.67±0.72#	2.47±0.83#	2.40±0.74#	2.27±0.96#

Baseline: before the operation; 1 min: 1 min after alcohol given. 2 h, 24 h, 1-month, and 3-month represented the following time points: 2 h, 24 h, 1-month, and 3-month after the operation. VAS: visual analog score.

^* p<0.05 vs. Single-point group;

^# p<0.05 vs. baseline.