3.2.4. Primary Outcome
COMMON COLD
To evaluate the incidence ratio, the severity of each symptom in the results of the daily physical questionnaire survey was converted into two grades according to the previous study [In the evaluation of the comprehensive condition using a face scale, the results were categorized as “good” (1 grade) and “bad” (4 grades), and the cumulative days were calculated (Overall, the results of the daily physical questionnaire survey indicated that the incidence rates of symptoms associated with the common cold were lower in the LG2055 group.