The level of IL-10 (↓44.23%, p ≤ 0.0001; ↓61.54%, p ≤ 0.0001, respectively) in SWS in psoriasis patients with normal and decreased saliva secretion was significantly lower than in the control group, with IL-10 content (↓31.23%, p ≤ 0.0001; ↓61.54%, p ≤ 0.0001, respectively) in SWS in hyposalivation patients significantly lower than in psoriasis patients with normal saliva secretion (Figure 1). The gene discussed is IL10; the disease is psoriasis.