支气管哮喘是一种过敏性疾病。多在冬春及气温变化明显时发病,也可因患者接触过敏源(如花粉、尘土、螨、药物等)引起。哮喘发作时常会流鼻涕、咳嗽等,继而声音嘶哑,咳嗽时发出“空”“空”声,吸气尤其费力,有吹哨一样的哮鸣声。患者口唇青紫,烦躁不安。严重的哮喘发作可持续24小时以上,一般治疗无法缓解。此时,患者表现为呼吸困难,呼气延长、咳嗽,面部苍 Bronchial asthma is an allergic disease. More in winter and spring and temperature changes significantly when the disease may also be caused by contact with allergens (such as pollen, dust, mites, drugs, etc.) caused. Asthma attacks often runny nose, cough, etc., and then hoarse voice, cough, issued “empty ” “empty ” sound, especially hard to get in, there whistling wheezing. Patients lips bruising, irritability. Severe asthma attacks can last 24 hours or more, the general treatment can not be alleviated. At this point, the patient showed dyspnea, prolonged exhalation, cough, facial Cang