Only by attacking the poison with more powerful poison could their life be prolonged. In such a way, the more robust anyone was able to become, the extended they would survive. Dugu Bo's poison talents are so effective, they've been killing the men and women all-around him all his existence. http://nidome-no-yuusha-light-no99865.onesmablog.com/The-Greatest-Guide-To-douluo-dalu-eng-34802077