Typically, the mouse neck injection model is used for evaluate pruritogen-induced scratch behaviors. However, the model provides information only on itch, not pain. Here, a cheek injection model is introduced in mice which can be used to simultaneously measure pain and itch-related behaviors.
Yamanoi, Y., Kittaka, H., Tominaga, M. Cheek Injection Model for Simultaneous Measurement of Pain and Itch-related Behaviors. J. Vis. Exp. (151), e58943, doi:10.3791/58943 (2019).