Treatment of asthma caused by allergy: 1. Patients should avoid allergic factors, such as avoiding contact with allergic foods, drugs as well as dust and fumes, etc. Patients prefer inhaled glucocorticoid therapy to reduce their airway sensitivity, such as the treatment of budesonide formoterol powder inhalation or salmeterol tetrasone powder inhalation. 2. In the event of an attack with obvious symptoms of shortness of breath and chest tightness, it is necessary to cooperate with short course of systemic intravenous hormone, such as injectable methylprednisolone sodium succinate (methylprednisolone) treatment, patients mostly need to use doxorubicin, ipratropium bromide aerosol or salbutamol aerosol at the same time to antispasmodic and asthma treatment. 3, some allergic asthma also need to use antihistamines during the attack, such as ketotifen or cetirizine hydrochloride, and also oral montelukast sodium tablets treatment, and sometimes can also be used in concert with Nebulized inhalation to improve its clinical symptoms.