Under normal circumstances, mucus is cleared easily whenever you swallow and the body’s defense systems eliminates harmful bacteria. Occasionally, something malfunctions, due to a cold, allergies, or a myriad of other issues. When too much mucus builds up and is not cleared away, it can develop into an irritating drip down the back of the throat. In addition to post-nasal drip causing this irritating sensation, it can lead to sore throats, persistent coughs, and ear infections. If not treated properly, these symptoms can get worse and eventually become debilitating.
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People who have a post nasal drip cough should realize their condition is now being called upper airway cough syndrome (UACS). This is a situation where a person has a cough for a long period of time with nasal congestion. It is often caused by mucus dripping down the back of their throat. This causes a person to have a regular sensation they must clear their throat. UACS can cause a person to have a hoarse voice as well as wake up in the morning with something noticeable in the back of their throat. UACS can result from a person having an allergic or a nonallergic reaction to something in their environment. It could also be the result of sinusitis.