Leukotriene receptor blockers are clinically common, such as montelukast sodium and zallust, which are non-hormonal anti-inflammatory drugs, and although their effects are not as strong as hormones, they can be taken orally and are convenient to use. For the smooth muscle of bronchial relaxation, inhibit bronchial contraction are very good effect. It is suitable for patients with mild asthma and allergic rhinitis for long-term oral treatment and is ideal for children. If asthma is too severe, treatment with leukotriene receptor blockers in combination with inhaled glucocorticoids, such as dexamethasone and budesonide, is complementary and more effective. Appropriate application of airway dilators, like salbutamol and terbutaline for nebulized inhalation, can also play a good supporting role.