After asthma patients' respiratory tract suffering the allergy sources or other physical-chemical factors stimulation, they will create overactive reaction to cause the spasm of respiratory tract's smooth muscle, membrane oedema, mucus over secrete which
After asthma patients' respiratory tract suffering the allergy sources or other physical-chemical factors stimulation, they will create overactive reaction to cause the spasm of respiratory tract's smooth muscle, membrane oedema, mucus over secrete which
气喘患者的呼吸道在受到过敏原或其他的物理化学因子刺激后，产生过度激烈的反应，使呼吸道的平滑肌发生痉孪，粘膜水肿，粘液分泌过多，致呼吸道管径变小，而产生咳嗽，喘呜，呼吸困难的气喘症状。