In the video below we see True Blood’s Kristin Bauer van Straten talk about Pam in the Season 4 finale, about her face rotting and about how she loved all the special effects done by Masters FX, but was kind of glad when it was all done.
Also, from Kristin’s official web site, below are photos of her in various stages of the rotting process.
source: kristinbauer.com
source: video.tvguide.com