The main symptom of asthma is expiratory dyspnea, which can occur in paroxysmal attacks. Some asthma patients can relieve themselves without any medication, and if they cannot relieve themselves, medication is required. The degree of medication is based on the symptoms, because asthma patients have dyspnea as a manifestation, and relief of dyspnea means that the symptoms are almost over. In addition, when an asthma attack occurs, both lungs may be full of croup, and people often say that they hear a sound like a chicken crowing in their throat, that is, croup. The professional asthma composite score is called ACT score, with a total score of 25. Patients with complete asthma control is 25, 20-24 is good asthma control, and patients with a score below 20 may have uncontrolled asthma.