TRPV1 and Cough: Our results show that inhalation of aerosolized TRPV1 or EP3 receptor antagonist sufficiently suppresses PGE2-evoked cough and that 24% vagal pulmonary C-neurons co-express TRPV1 and EP3 receptor with the cross-effect between TRPV1 and EP3 receptors in the neural excitability similarly to the cough.