blister AE lip blister AE 10049307 Lip blister AE which is a small pocket of body fluid (lymph, serum, plasma, blood, or pus) within the upper layers of the lip skin, usually caused by forceful rubbing (friction), burning, freezing, chemical exposure or infection. 嘴唇起泡 QY, JX, HY http://en.volupedia.org/wiki/Blister