Hi, chronic dryness of throat is called pharyngitis sicca or atrophic pharyngitis. it is often accompanied with the same condition of larynx (laryngitis sicca) Take a look at the others type of chronic pharyngitis for example hypertrophic. I went to many doctors and got tested for many things, but nothing was found. I went to very experienced ENT and was diagnosed with chronic atrophic rhinopharyngitis. Also check out condition called pachyderma laryngis which is a contition caused by laryngitis sicca. It means that in the morning you wake up with the dry catarh and crust in your vocal cords. Note that laryngitis sicca or many other laryngeal disorders can be diagnosed only with fibroscopic laryngoscopy otherwise you cannot diagnoseed many laryngeal disorders properly. The thing is that you should get CT scan of your sinuses. I have absolutely no reflux issues. Atrophic pharygitis (or pharygitis sicca) is caused by very poor regeneration of pharynx epithelium after cold or other deseases and is underlied by genetic programming of your throat epithelium! any kind of chronic pharyngitis hypertrophic or atrophic )same stands for chronic laryngitis) is a cause of weak regeneration of epithelium. The issue is not too much mucus but, disrupted throat epithelium which disables the fast mucus down to your esophagus. disrupted epithelium catches mucus and doesnt let it down easily! Atrophic pharyngitis means dry mucus that is thick and not moving down fast but it´s stuck in throat instead. Try some spiritual methods for example chackra work or healing code by Alex Lloyd. look up the books in amazon which deals with selfhealing methods. this desease is very tough. No one in my family has idea how tough is chronic pharyngitis and laryngitis. Also get some quality aloe vera gel, but drink at least six bottles, also I probably try colostrum, at last medical help. I wish you Good luck.