Figure 5: Bar diagram showing the paw licking time of different rat groups after formalin injection. Paw licking time in neurogenic pain, inflammatory pain, and total pain is measured separately (grouped bars a-c, respectively). * indicates inter-group significance for each type of pain intensity compared to the normal animals of the same group. ***indicates P ≤ 0.001, **indicates P ≤ 0.01, and *indicates P ≤ 0.05