Additionally, we found that the levels of mRNA expression of Th2 (IL-4 and IL-13), Th1 (IFN-γ), and Th17 (IL-17A) cytokines were significantly increased in the cervical lymph nodes of atopic dermatitis mice induced with DNCB, as shown in Figure 7A–D. Here, IL17A is linked to atopic eczema.