Fig. 2

Pain intensity scores between baseline, and 7 days and 14 days post-treatment. All values are displayed as median (IQR). The percent change of pain intensity score at 7 days post-treatment compared to baseline is illustrated. * Significant differences (P < 0.05) in pain intensity between day 0 and either day 7 or day 14, in each group are asterisked (Wilcoxon signed-ranks test)