BACKGROUND: This study is to investigate on how much the dysmenorrhea and lower abdominal pain(LAP)/back pain are improved by the aromatherapy which is emerging as an alternative therapy. METHODS: In order to get the data by questionnaire, 245 subject was selected from women student class of a high school at rural area from June 2000 to August 2000. 125 subject was selected who are above the 5 grade of LAP/back pain. Among the 129 subject, aroma was given to 69 subject and placebo was given to 56 subject. The subject was investigated how the dysmenorrhea was improved by using the aroma and placebo. RESULTS: After the aromatherapy, severities of dysmenorrhea and LAP/back pain imporved in aroma group and placebo group. Therefore, there is not statistical difference between both groups. CONCLUSION: The herbal aroma is not effective more than placebo aroma to relieve dysmenorrhea.