Table 2: Changes in clinical scores of the most debilitating symptoms from baseline to 20 minutes following spray application and 3-day followup.

Overall Herbal group Control group value

Clinical improvement* in the most debilitating symptom 20 minutes following application, (%)33 (55.0)19 (73.1)14 (41.2).019
Clinical improvement* in the most debilitating symptom following 3 day application, (%)38 (63.3)18 (72.0)20 (58.8).42

*Improvement was defined as at least one-score reduction in a 4-degree symptom scale ranging from 0 to 3 of the most debilitating of the following symptoms: sore throat, hoarseness, or cough.