What is asthma? Asthma, known as bronchial asthma, is one of the most common chronic diseases in the world. The cause of asthma is still not fully understood, but it is generally believed to be genetically related. Asthma is a chronic inflammatory disease that stimulates acute attacks once triggers are ingested or inhaled. There are many substances that can trigger asthma, such as indoor irritants like dust mites, pets and cockroaches, outdoor irritants like pollen and grass pollen, chemical materials like paints and dyes, foods like fish, shrimp, crab, milk and eggs, and special medications. Smoking, atmospheric pollution, obesity, inappropriate exercise, etc. may cause asthma attacks. In this serious situation, in addition to calling 120, you can also do these: 1, ensure that the patient is in a safe, airy place; 2, observe whether there is a response; 3, lift the patient’s jaw to help open the airway; 4, daily can also pay attention to CPR CPR how to operate, when necessary, it can save a life; 5, wait for the ambulance to arrive. For a conscious patient with mild symptoms, you can do the following: 1. Make sure the patient is in a safe, airy place; 2. Help the patient maintain a comfortable position, such as sitting and leaning forward; 3. Comfort the patient by telling him to breathe slowly and deeply; 4. Note: Patients may keep inhaling the spray when symptoms are severe, but overdosing may be life-threatening and you should keep in touch with your 120 physician by phone for guidance.