There are many types of sprays for asthma and their effectiveness varies from person to person. 1. β2 agonist: such as albuterol aerosol, used for the prevention and treatment of bronchial asthma or wheezing bronchitis and other respiratory diseases accompanied by bronchospasm, a few patients may have muscle tremor, headache adverse reactions, allergic to the product and alcohol are prohibited. 2. Glucocorticoid aerosol: such as budesonide aerosol, used for non-glucocorticoid-dependent or glucocorticoid-dependent bronchial asthma, its adverse effects include oropharyngeal candida infections, etc., allergic to the person prohibited. 3. Anticholinergic drug inhalers: such as tiotropium bromide aerosol, used for the treatment of respiratory distress associated with chronic obstructive airway disease, its adverse effects include cough, dry mouth, etc., for the product is prohibited for those who are allergic. 4. Compound preparation:Budesonide formoterol inhalation powder aerosol, used for the treatment of asthma and chronic obstructive pulmonary disease, its adverse reactions include infection, etc., is prohibited for those who are allergic to its ingredients. If you suffer from asthma, you should consult your clinician for specific medication regimen and follow the doctor’s instructions.