The basic treatment of asthma is as follows: 1, long-term anti-inflammatory therapy is the basic treatment, the first choice of inhaled hormones, commonly used inhaled drugs are beclomethasone, budesonide, fluticasone, mometasone, etc., the latter two are more biologically active and have a longer duration of action; 2, the first choice of drugs for emergency relief of symptoms is β2 agonists, β2 agonist’s mainly by agonizing the β2 receptors in the respiratory tract to activate adenylate activation enzyme, so that It is the drug of choice to control acute asthma attacks; 3. If the condition is not satisfactorily controlled after regular hormone inhalation, it is advisable to add inhaled long-acting β2 agonists, such as theophylline or leukotriene modulators, and consider increasing the amount of inhaled hormone; 4. 4. In patients with severe asthma who have recurrent attacks for a long period of time despite the above treatment, intensive treatment can be considered, i.e. treating severe asthma attacks with high-dose hormone therapy, waiting for the symptoms to be fully controlled, lung function to return to the optimal level, and PEF variability to be normalized in 2-4 days before gradually reducing the hormone dosage. Some patients have satisfactory disease control after the intensive treatment phase.