IL13 and allergic respiratory disease: Interestingly, when assessed 24 h post-nasal-allergen challenge, such treatment significantly decreased IL-5+/IL-13+ ILC2s, as well as HLA-DR+ ILC2 within the nasal mucosa, thus, highlighting the fact that the attenuation of HLA-DR expression by ILC2 may be another mechanism of action of corticosteroids in modulating the adaptive immune responses in airway allergies that MI can exploit.