Distributions of the categories on the gLMS scale chosen by 21 subjects to represent the sensations of itch, pricking/stinging and burning in response to capsaicin (200 mg/ml), histamine (10 mg/ml), and native cowhage (A, B, and C, respectively). Data presented are same as those used to calculate average responses in Fig. 5. The labels correspond to the following categories and numerical values on the gLMS scale: barely detectable (BD, ≤ 1), weak (WK, >1≤6), moderate (MD, >6≤17), strong (ST, >17≤35), very strong (VS, >35≤53) and greater than very strong (>VS, >53).