If a patient has a history of asthma and suddenly develops dyspnea and a large number of dry rales in both lungs, an acute attack of asthma is considered: first, we can inhale fast-acting bronchodilators, such as Ventolin, Advil, and so on. Secondly, we can inhale glucocorticoids such as Symbicort or Sulforaphane, or take oral aminophylline or doxorubicin to calm the asthma. It is important to avoid contact with allergic substances, such as animal fur or pollen, and oral leukotriene modifiers, such as montelukast sodium. In addition, if the patient has a history of hypertension, coronary artery disease, diabetes mellitus, and the patient also has clinical manifestations such as precordial discomfort, precordial pain, and swelling of the lower limbs, the patient is considered to have an attack of heart failure, and we can take quick-acting heart pills, oral furosemide, spironolactone, isosorbide mononitrate extended-release tablets, and other related drugs.