冬天容易感冒,而感冒是诱发慢性支气管炎急性发作的主要原因。除感冒之外,烟雾的刺激,尤其是吸烟,亦可加剧病情。工业烟尘及纸烟烟雾中含有大量有害物质,致使正常呼吸道的功能遭到损伤,抵御细菌、病毒的能力下降,炎症趁机而入。也有些人与过敏有关,如闻了油烟、油漆、敌敌畏等而发病或使病情加重。近年来也注意到有些慢性咳喘病人与遗传有一定关系,在某些家庭,几代人中都出现过这种病人。 Cold easily in winter, and cold is the main cause of acute exacerbation of chronic bronchitis. In addition to the flu, the stimulation of smoke, especially smoking, can aggravate the condition. Industrial fumes and cigarette smoke contain a lot of harmful substances, resulting in the normal respiratory tract function is damaged, against bacteria, the ability of the virus to decline, the inflammation took the opportunity to enter. Some people also have allergies, such as smelling fumes, paint, dichlorvos, etc. or the incidence of or aggravate the disease. In recent years, it has also been noted that some patients with chronic cough and heredity have a certain relationship, in some families, generations have seen this patient.