Acute Effect of Topical Menthol on Chronic Pain in Slaughterhouse Workers with Carpal Tunnel Syndrome: Triple-Blind, Randomized Placebo-Controlled Trial

Figure 2

Change in arm/hand pain following application of topical menthol (menthol) or topical placebo (placebo) before (time 0) and 1, 2, and 3 hours following application. , denotes significant difference between interventions (; , resp.).