Allergic asthma is a common respiratory disease, mostly occurring in spring and autumn, with typical symptoms of shortness of breath, chest tightness, coughing and shortness of breath. If patients are in remission of allergic asthma, they can take the new crown vaccine, and after taking the vaccine, they should pay attention to observe whether there are any adverse reactions, and if they are in the attack period, it is recommended to treat the disease before taking the new crown vaccine. 1. Attack period: It is not recommended to take the new crown vaccine during the attack period of allergic asthma, because the body immunity of allergic asthma decreases during the attack period, and the injection of the new crown vaccine at this time is likely to aggravate the asthma disease and also easily cause a series of At this time, allergic asthma should be treated first, and some antispasmodic, anti-allergic and antihistamine drugs, such as methylprednisolone, sodium succinate, doxorubicin and aminophylline, can be applied, and the new crown vaccine can be administered after the allergic asthma is stabilized; 2. There will be no adverse effects, but it is necessary to consult the doctor in advance. After the vaccination, you should pay attention to observe whether there is any discomfort, and if there is discomfort, you should go to the hospital immediately, and you should also actively treat your allergic asthma to avoid delaying the disease and aggravating the symptoms. Try not to take a bath within three days after vaccination, and pay attention to local skin hygiene to avoid causing infection. After vaccination, you should eat a light diet, and foods with high protein and vitamins are recommended. Forbid drinking alcohol, avoid spicy and stimulating food, pay attention to rest and avoid physical exertion.