When cold, the respiratory tract can present some nasal mucuses and the sputamentum, makes one think not comfortably, actually, the nasal mucus and the sputamentum are misdemeanors not necessarily.

• 感冒时，呼吸道会出现一些鼻涕与痰液，令人觉得不舒服，其实，鼻涕和痰液未必是坏事。