Clinical validation of controlled exposure to house dust mite in the environmental exposure unit (EEU)

Table 2 Ranking of nasal and ocular symptoms

Symptom	Score
Symptom	0	1	2	3
TRSS	Symptom is completely absent	Symptom is present, but not bothersome	Symptom is bothersome, but tolerable	Symptom is hard to tolerate, desiring treatment
TNSS
Runny nose/ nasal drip
Nasal congestion/ stuffiness
Sneezing
Itchy nose
TOSS
Itchy/ gritty eyes
Watery/ tearing eyes
Red/ burning eyes
Ear/ palate/ throat itching

Participants rated their symptoms on a scale from 0 to 3, increasing in severity on paper diary cards. The individual symptom scores for each participant were tallied as Total Nasal Symptom Score (max 12), Total Ocular Symptom Score (max 9) and a Total Rhinoconjunctivitis Symptom Score (max 24)

ISSN: 1710-1492