I read with interest the article by Rondon et al on the possible allergen sensitization in subjects with nonallergic rhinitis (NAR). The authors conclude that "persistent moderate-to-severe rhinitis associated with asthma, conjunctivitis, or both and sensitization to aeroallergens are likely to appear at a later date in adults initially given diagnoses of NAR. A periodic re-evaluation of these patients might therefore be necessary." Moreover, they report that the most frequent specific aeroallergen was Dermatophagoid.es pteronyssinus.
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