The Current Knowledge of Allergen Nasal Provocation Test

ABSTRACT

Nasal provocation test (NPT) is a procedure used to evaluate the hyper-responsiveness of nasal mucosa after exposure to a provocative allergen. We aimed to identify the clinical indication and contra-indication for the use of NPT, and to introduce the actual NPT laboratory protocol in our clinical practice. We also provide clinical information which could be useful in conducting NPT. Finally, we discuss the current limitations of NPT and present a plan to overcome these difficulties.