普通感冒为常见病，可引起较轻微不适。美国的一个研究发现，3岁儿童中有一半以上在刀天内用过药物，其中2／3是用来治疗咳嗽与感冒。K幻ser等发现在普通感冒的成人中，其上呼吸道隐藏着致病菌，如用相应抗菌药后症状较快消失。但医师并不了解判断患者是否受到嗜血流感杆菌、卡 Common cold is a common disease that can cause minor discomfort. A study in the United States found that more than half of 3-year-olds used drugs within the knife’s day, two-thirds of which were used to treat coughs and flu. K Magic ser found in the common cold adults, the upper respiratory tract hidden pathogens, such as the symptoms with the corresponding antimicrobial agents disappear soon after. However, doctors do not know to determine whether the patient is susceptible to Haemophilus influenzae