this doesnt sound that serious but i could really use help

i have flem (phlegm) stuck in the back of my throat, no matter what i do i cant get it out, i get to the point were i throw up and its still stuck in there now my throat is painfully sore and i still have flem (phlegm) thats ready to come out but just wont, i cant swallow it either, is there anyway i can get ride of this flem (phlegm)???, the longer its in there the more it hurts

[National Jewish]

A common cause of phlegm in the throat is postnasal drip. This is drainage from the nose and sinuses dripping down the back of the throat.  There could be several reasons for this drainage.  One reason is an allergy.  A second reason is a non-allergic, non-infectious inflammation in the sinuses that can linger after a cold.  A third reason is chronic sinusitis.   You may experience the postnasal drip as a constant feeling of mucus at the back of your throat.  Typically this is worse at night when you lay down to sleep.  Generally this irritation feels the worst when you wake up and gets better as the day goes on.  The mucus may "sit" there, especially when it is thick, and become dark in color and really smell bad.  It may not move with coughing or snorting.  The fat content in dairy products can thicken mucus.  Generally eating dairy products with less fat content is helpful.  Drinking plenty of water will help to thin the mucus so that it moves more easily.  As long as you are not on a fluid restriction you should be drinking 6 to 8 8-ounce glasses of non-caffeine non-alcoholic fluid daily.  Clearing your throat can irritate your throat and make it sore.  When you feel the need to clear your throat sip some water to clear the mucus.  An antihistamine, like the Clarinex

[Ellis7]

Another possibility is GERD [gastro reflux] See:
http://www.aboutgerd.org/characteristics.html
Excerpt:
"Chronic heartburn is the most common symptom of GERD. Acid regurgitation (refluxed material into the mouth) is another common symptom. But numerous less common symptoms other than
heartburn may be associated with GERD. These may include:
*Belching
*Difficulty or pain when swallowing
*Waterbrash (sudden excess of saliva)
*Dysphagia (the sensation of food sticking in the esophagus)
*Chronic sore throat
*Laryngitis
*Inflammation of the gums
*Erosion of the enamel of the teeth
*Chronic irritation in the throat
*Hoarseness in the morning
*A sour taste
*Bad breath "