The purpose of this study was to investigate the clinical effects of herbal steam therapy on cough. Twenty-eight patients with cough who had treated with herbal steam therapy(chungsang, chungpae) between 3rd of January and 30th of April, 2013 were analyzed. The effects were evaluated the severity and frequency of cough as the modified questionnaire, severity of discomfort using visual analogue scale(VAS), and the patients’ subjective satisfaction. Eighteen patients who had been treated herbal steam therapy over 3 times were analyzed improvements before and after therapy. Chungsang and Chungpae steam therapies significantly decreased the severity and frequency of cough. VAS scores also decreased from 7.78±0.878 to 4.39±2.033. Patients were satisfied with herbal steam therapy. Chungsang and Chungpae steam therapies seem to be effective in the treatment of cough. Further studies with a large number of cases will be needed in the future.