Salbutamol Aerosol is used by holding the casing in the mouth, inhaling and pressing the nozzle to inhale the liquid, the specific dosage should follow the doctor’s instructions. Salbutamol Aerosol should be removed and shaken well before use, then invert the bottle and put the shell into the mouth, aligned with the throat, and immediately press the nozzle while inhaling vigorously, the liquid can be sprayed into a mist, the patient should hold his breath for a moment after inhalation, so that the liquid can play a role. Albuterol aerosol is a selective β2 agonist, can selectively act on the bronchial smooth muscle, play a potent bronchodilator, the drug is mostly used in the asthma attack omen or asthma attack, used for the prevention and treatment of bronchial asthma or other respiratory diseases accompanied by bronchospasm. It should be noted that the use of albuterol aerosol is prohibited for those who are allergic to other β2 agonists and Freon, and should be used with caution by athletes, pregnant women, lactating women, and children, and the drug can develop resistance with prolonged use, and should be used in conjunction with inhaled or systemic corticosteroids for those who use this drug regularly. Some patients may experience side effects such as muscle tremor, accelerated heart rate, headache, allergic reactions, etc. If the discomfort is severe, patients should consult a doctor in time. Patients should follow the doctor’s instructions to use salbutamol aerosol, not blindly use the drug, so as not to induce side effects, or affect the efficacy of the drug.