The “Baihui” and “Dazhui” points are the “Du meridian.” Studies showed that electrical stimulation of the “Baihui” acupoint can reduce the expression of matrix metalloproteinase-9 (MMP9), the permeability of the BBB, and the occurrence of cerebral edema (Dong et al., 2009; Zou et al., 2015). This evidence concerns the gene MMP9 and brain edema.