Rhinorrhea or rhinorrhoea is a condition where the nasal cavity is filled with a significant amount of mucous fluid. The condition, commonly known as "runny nose", occurs relatively frequently and is not usually considered dangerous.
Rhinorrhea is a common symptom of allergies or certain diseases, such as the common cold or hay fever. It can be a side effect of crying, exposure to cold temperatures, or withdrawal, such as from opioids like methadone.
Treatment for rhinorrhea is not usually necessary, but there are a number of medical treatments and preventative techniques available.
The term was coined in 1866 and is a combination of the Greek terms "rhin-" meaning "of the nose" and "-rhoia" meaning "discharge or flow".
In most cases treatment for rhinorrhea is not necessary and will clear up on its own - especially if it is the symptom of an infection. For general cases, one may simply blow his or her nose to get rid of the mucus buildup. Alternatively, salinenasal sprays and Vasoconstrictor nasal sprays may also be used, but may become counterproductive after several days of use, causing Rhinitis medicamentosa.
In recurring cases, such as those due to allergies, there are medicinal treatments available. For cases caused by histamine buildup, several types of antihistamines can be obtained relatively cheaply from drugstores.
People who prefer to keep clear nasal passages, such as singers, who need a clear nasal passage to perform, may use a technique called "nasal irrigation" to prevent rhinorrhea. Nasal irrigation involves rinsing the nasal cavity regularly with salty water or store bought saline solutions
We will talk about nasal irrigation soon
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