Table 2.

Reasons of dropped out from the present study (n)

Contents of reasons	Group I	Group H
Non-improvement	2	6
Dissatisfaction	3	10
Complication with other diseases	-	3
Pain or threaten	-	3
Costly medical fee	2	1
Busy	3	-
No reasons or troublesome for re visiting	26	8
Total	36	31

Notes: all of subjects were divided into two groups by durations of common cold. Group I is consisted of patients with common cold who visited within 36 h onset of common cold, and Group II is composed of patients who were over than on set of common cold over than 36 h. A total 67 of participants dropped out (Group I for 36 and Group II for 31) from the current study.