Comparison of conjunctival and nasal provocation tests in allergic rhinitis children with Dermatophagoides pteronyssinus sensitization.

Background: Nasal provocation tests (NPTs) are indicated in confirming the diagnosis of allergic rhinitis if the clinical history, skin tests or sIgE are inconclusive. NPTs are time- consuming, technically difficult and expensive to perform. Consequently, conjunctival provocation tests (CPTs), which are easier, cheaper and safer should be considered as an alternative method.