Asthma prevention and treatment basic clinical strategy 1, long-term anti-inflammatory therapy is the basic treatment, the first choice of inhaled hormone, this drug is poor in acute attacks, so should be long-term inhalation, this is the key; 2, the first choice of drugs for emergency relief of symptoms is inhaled β2 agonist, but not recommended for routine use, if you repeated attacks, indicating that inhaled hormone is not in place; 3, regular inhaled hormone after the disease control is not satisfactory, it is appropriate to add inhaled Long-acting β2 agonists, there are some ready-made compound preparations, which can be prescribed at the hospital, or add slow-release theophylline, or leukotriene modulators (combined medication); also consider increasing the amount of inhaled hormone; 4, severe asthma patients, after the above treatment is still long-term recurrent attacks, can consider doing intensive treatment. That is, according to the treatment of severe asthma attacks (given systemic hormones and other treatment), after 2 to 4 days after the symptoms are completely controlled, lung function returns to the optimal level and PEF fluctuation rate is normal, gradually reduce the amount of hormones. Some patients have satisfactory disease control after the intensive treatment phase.