Also, do not leave the cottonplug in a medicine container that has been opened, since it may draw moisture into the container.
不要将棉塞留在已经打开过的药瓶内，以避免将潮气吸入瓶内；
2
The vitrification rate caused by cottonplug wrapped in cheese cloth was the lowest among all seal materials, including polyethylene film, plastic cover and sulfuric paper.