|Study||Product||Study design||Population||Sample size||Main findings|
|Federspil P, et al. 1997 ||GeloMyrtol||Double-blind randomized clinical trial||Acute sinusitis||n = 331||
Main study outcomes:|
Changes in symptom score from baseline were greater with GeloMyrtol and an undefined essential oil than placebo.
|Kehrl W, et al. 2004 ||Cineole||Double-blind randomized clinical trial||Acute non-purulent rhinosinusitis||
n = 76 with cineole|
n = 76 with placebo
The change in symptoms-sum-score from baseline to Day 7 was greater in the cineole group (− 12.5 ± 3.6) than in the placebo group (− 6.5 ± 3.5) (p < 0.0001).
Changes in individual components of symptom-sum score were higher in the cineole group than in the placebo group