Additionally, IL‐10 has been shown to play a role in response to allergy, a common comorbidity of CRS and potential trigger for COPD exacerbation, by dampening Th2‐derived allergic inflammation (Jamieson et al., 2013; Jantunen et al., 2019; Marcus et al., 2019). Here, IL10 is linked to chronic obstructive pulmonary disease.