Abstract: The subject invention concerns a method and device for assessing facial pain sensitivity exhibited by an animal. The device and method can be used, for example, to evaluate the effect of a disease state, drug, or other intervention, on facial pain sensitivity, such as orofacial pain sensitivity. In one embodiment, the device and method provide a way of assessing both heat and cold sensitivity (hyperalgesia and allodynia) in the facial region in a non-invasive manner. Additionally, since the animals can be kept unrestrained, there are less confounding factors such as stress, which are inherent to other facial pain testing techniques.