Hi, every time I get sick I get these green or yellowish green bumps in the back of my throat (if it gets really bad sometimes the bumps are pure yellow). It looks like pockets of mucus but I m not sure. The bumps range from pea size to about the size of a nickel and I was wondering what they are and what causes them. There is usually a flowing stream of mucus running down the back of my throat and, yet, my whole esophagus and nasal cavity feel extremely dry to the point where it is either very uncomfortable or sometimes it is even painful.