The onset of asthma is closely related to environmental factors, and exacerbations of asthma are often related to environmental factors as well. For a specific patient who does have relatively clear allergens in his living environment that trigger exacerbations, we would encourage him to try to avoid exposure or exposure to these allergies or risk factors and to live in a different environment. When it comes to climate, the winter is very cold in northern areas and some elderly people are prone to acute upper respiratory tract infections. Acute upper respiratory tract infection is a viral infection and a trigger for asthma exacerbation. If these elderly people go to areas with relatively warm climate and clean air such as Hainan in winter, it may be beneficial for his disease control. Therefore, if the patient’s family is financially able, it is possible. On the one hand, in warmer climates can reduce the chance of acute respiratory infections and to breathe fresh air; on the other hand, the elderly can also do appropriate outdoor activities, which are beneficial to improve cardiopulmonary function.