Beclomethasone is a hormonal drug that can treat many diseases caused by inflammatory irritation, such as asthma, and if it is an ointment, it can also treat some skin infections and allergic diseases, as well as local swelling and pain caused by exfoliative dermatitis and various chronic rashes, and its aerosol can treat acute attacks of asthma, and is effective in relieving bronchodilation and treating His aerosol can treat acute attacks of asthma and is very effective in relieving bronchial diastole and treating inflammatory secretions of the bronchial mucosa. However, because the side effects of hormonal drugs are also very large, which can lead to obesity, osteoporosis, and even induce hepatosplenomegaly, etc. Therefore, when the symptoms are relieved, we should stop using this kind of drugs in time to avoid various discomforts.