Figure 1: The effects of CCI on (A) the mechanical allodynia; (B) the heat hyperalgesia; and (C) the cold allodynia. The CCI groups received normal saline according to the treatment program. Sham group had the same surgery, nerve ligation was not made. CCI and Sham groups were given almond oil according to the same schedule. The results are expressed as mean ± SEM, n = 8. **P < 0.01 and ***P < 0.001 indicate significant differences compared with the sham group. CCI, chronic constriction injury.