IL17A and Erythema: In addition, the major compounds of L-EO are linalool and linalyl acetate [107], which represent the alleviation effects of psoriasis, such as the reduction of erythema, thickness, scaling, keratin, pigmentation, and curvature, as well as the inflammatory cytokines levels of Th-17- and Th-1- specific cells by downregulating C-C motif chemokine receptor (CCR) 6 and IL-17 expression in an IMQ-induced psoriasis mouse model [109].