The purpose of present study is to assess the effects of capsaicin topically applicated to the chronic periodontal pain suffering area. In the First study, twenty patients with chronic pain caused by mild periodontal disease were selected, and periodontal pack containing capsaicin(PPC) was attached to these patients gingiva around pain suffering area. Then the presence of discomfort had been recorded every ten minutes for the first 1 hour. After 1 hour again, It had been recorded according to the presence of pack and to the existence of pain. In the second study, twenty moderate periodontitis patients were selected. After subgingival curettage of two quadrant area, non-euginol periodontal pack or PPC were attached to the curetted gingival margins of them (Non-euginol pack bearing area and capsaicin pack bearing area is supposed to control group and test group respectively.), and the degrees of pain with time had been recorded eight times with 1 hour interval (at that day) or recorded once in a day (from the next day to the next appointment day). The results are as follows : 1. PPC has caused discomfort accompanied by burning sensation to the mild periodontitis patients with chronic pain. 2. PPC has given little effects to improve the pain after subgingival curettage of moderate periodontitis patients.