There is no such thing as the nemesis of chronic obstructive pulmonary disease (COPD). Patients with COPD should keep away from bad stimuli, pay attention to warmth, and take medication reasonably to alleviate the condition of COPD. 1. Keep away from bad stimuli: Keeping away from bad stimuli is an effective means of preventing the onset of chronic obstructive pulmonary disease (COPD), for example, not going to dirty environments or not smoking, which can effectively avoid the onset of COPD. 2. Pay attention to keep warm: when stimulated by cold air, the disease is particularly easy to develop. Paying attention to warmth can prevent the attack of COPD. 3. Reasonable medication: COPD is divided into acute exacerbation and remission. (1) Acute exacerbation: control infection, based on the patient’s location of common pathogenic bacteria empirical selection of antibiotics, generally oral, when the condition is serious intravenous administration, such as levofloxacin. To suppress cough and expectorant, can use compound licorice combination and ambroxol. Theophyllines can also be used synergistically, such as doxophylline or theophylline extended-release tablets. (2) In the remission period of chronic obstructive pulmonary disease, bronchodilators, short-acting drugs such as salbutamol, terbutaline and anticholinergic drugs such as ipratropium bromide are mainly used to relieve cough and asthma. Long-acting ones such as salmeterol, formoterol and tiotropium bromide. Medications should be used under a doctor’s supervision. When the acute attack of chronic obstructive pulmonary disease should be timely to the hospital, follow the doctor’s instructions standardized treatment, the above drugs should be used under the guidance of the doctor standardized use.