Acceptability and feasibility of biomarkers of airway eosinophilic inflammation for the management of preschool wheeze: a qualitative study

Finger-prick, skin-prick and FeNO testing are conditionally acceptable and feasible in clinical practice for preschool wheeze. However, there should be evidence of their effectiveness, empathetic communication between parents and HCPs and tests' cost-effectiveness to support NHS funding.