http://mappartnc.seo-blog.org/2008/05/22/tasmania-what-is-phenylephrine-hci-to-burma-aid-effort/ Therefore, continuous production of excessive sebum results in bumps called blackheads, whiteheads depending upon the severity. Sat, 22 Nov 2008 20:00:25 +0000 http://wordpress.org/?v=2.5.1