*2.3. Short-Term and Long-Term EA Stimulation Exerted Comparable E*ff*ects on Pain Hypersensitivity and P2X3 Expression*

To investigate the effects of short-term and long-term EA stimulation, we compared the ratio of change in PWT and P2X3 expression in L4-6 DRG and SCDH. As shown in Figure 6A, there was no significant difference in the ratio of changes in PWT between EA stimulation for 3 and 14 days (*P* > 0.05). Additionally, there was no significant difference in the ratio of changes in P2X3 expression either in L4-6 DRG or SCDH between EA stimulation for 3 and 14 days (Figure 6B, *P* > 0.05).

**Figure 6.** Short-term and long-term EA stimulation treatments exerted comparable effects on pain hypersensitivity and P2X3 expression. (**A**) The ratio of changes in PWT after 100 Hz EA stimulation for 3 and 14 days. (**B**) The ratio of changes in P2X3 after 100 Hz EA stimulation for 3 and 14 days. Data are presented as the mean ± SEM.
