Objective: To observe the clinical effects of self-made Original-Qi-Preserving Decoction on chronic obstructive pulmonary disease( COPD) at acute and aggravated stage. Methods: 60 cases with COPD at acute and aggravated stage were randomized into control group and observation group,with 30 cases in each group. Control group were given routine western medicine treatment while observation group were added with self-made Original-Qi-Preserving Decoction. Results: The effective rate was 83. 3% in observation gr...