From: Heterogeneity of cough hypersensitivity mediated by TRPV1 and TRPA1 in patients with chronic refractory cough
Capsaicin
Total
+
–
AITC
25 (10.7)
44 (18.8)
69 (29.5)
28 (11.9)
137 (58.6)
165 (70.5)
53 (22.6)
181 (77.4)
234 (100)