Budesonide nebulized inhalation, which can locally inhibit airway inflammation, anti-allergy, anti-microvascular leakage and relax smooth muscle, is mainly used for the control of asthma exacerbation and the prevention of remission. In acute attacks, antispasmodic, anti-inflammatory, removing airway plugs and keeping breathing open are the principles of treatment, and antibiotic drugs can be given to control intrapulmonary infections when combined with infections. Drugs such as formoterol, salbutamol and terbutaline can be used to relieve the symptoms of bronchial asthma, which have the effect of diastolic bronchial smooth muscle and calming asthma. If patients have bronchospasm, they can use theophylline drugs together. The drip rate should be slowed down when intravenous drip is given, otherwise it may cause arrhythmia or even the phenomenon of death. During the remission period, it is necessary to strengthen physical exercise, improve physical fitness, enhance the immunity of the body, pay attention to weather changes, prevent cold and keep warm, and avoid the occurrence of upper respiratory tract infection diseases.