The outcomes of Lv et al. showed that Yangxue Jiedu soup (YJS) is capable of inhibiting the NF-κB signaling pathway, blocking TLR4 activation, and restraining the secretion of HSP70 exosome, further reducing the production of inflammatory cytokines, and subsequently, contributing to the improvement of psoriasis (68). Here, TLR4 is linked to psoriasis.