Elderly shortness of breath may be strenuous exercise, chronic obstructive pulmonary disease, pulmonary embolism, heart failure and other reasons, for the cause of the fastest solution with medication or rest. 1. Strenuous exercise: the elderly metabolism is low, long time after strenuous exercise to the body to increase oxygen consumption, so the physiological shortness of breath. Timely bed rest can be a quick solution. 2. Chronic obstructive pulmonary disease: long-term airway inflammatory response in the elderly leads to irreversible narrowing of the airway obstruction, pulmonary ventilation is limited, so this symptom will appear. Application of inhaled glucocorticoid sprays such as budesonide, beta-blockers such as salbutamol, anticholinergics such as ipratropium bromide and aminophylline can be the fastest solution. 3. Pulmonary embolism: lower extremity venous thrombus dislodgement, fat embolus dislodgement after fracture and other factors lead to pulmonary artery and its branches embolism, pulmonary ischemic infarction and the emergence of this symptom. Rapid application of streptokinase, urokinase and other drugs such as intravenous thrombolysis and warfarin, low molecular heparin and other anticoagulant therapy to resolve the fastest. 4. Heart failure: this symptom occurs due to pulmonary circulation stasis and pulmonary dysfunction caused by ventricular systolic diastolic dysfunction. Application of furosemide, spironolactone, sodium nitroprusside, digoxin and other drug therapy to solve the fastest. It is recommended to go to the hospital in time and pay attention to the use of drugs under the guidance of physicians.