From: The effectiveness of topical colloidal silver in recalcitrant chronic rhinosinusitis: a randomized crossover control trial
Saline
Colloidal silver
p value
SNOT-22 score, mean (CI)
−2.8 (−9.6 to 4.1)
1.0 (−4.3 to 6.2)
0.373
LK score, mean (CI)
−1.4 (−2.8 to 0.1)
−1.1 (−2.5 to 0.3)
0.794