Rhinorrhea

runny nosenasal dischargerhinorrhoeaa runny nosedischarge from nosedischarge from the nosefluid leaking from the nosenasal secretionnose starts to runrhinorrea
Rhinorrhea or rhinorrhoea is a condition where the nasal cavity is filled with a significant amount of mucus fluid.wikipedia
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Allergy

allergiesallergicallergic reaction
Rhinorrhea is a common symptom of allergies (hay fever) or certain diseases, such as the common cold.
Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling.

Common cold

coldcoldsnasopharyngitis
Rhinorrhea is a common symptom of allergies (hay fever) or certain diseases, such as the common cold. Rhinorrhea can be a symptom of other diseases, such as the common cold or influenza.
These may include coughing, sore throat, runny nose, sneezing, headache, and fever.

Allergic rhinitis

hay feverhay-feverhayfever
Rhinorrhea is a common symptom of allergies (hay fever) or certain diseases, such as the common cold.
The characteristic symptoms of allergic rhinitis are: rhinorrhea (excess nasal secretion), itching, sneezing fits, and nasal congestion and obstruction.

Opioid

opioidsopioid analgesicendogenous opioids
It can be a side effect of crying, exposure to cold temperatures, cocaine abuse or withdrawal, such as from opioids like methadone.
The withdrawal symptoms for opiates may include severe dysphoria, craving for another opiate dose, irritability, sweating, nausea, rhinorrea, tremor, vomiting and myalgia.

Influenza

fluthe fluhuman flu
Rhinorrhea can be a symptom of other diseases, such as the common cold or influenza.
The most common symptoms include: high fever, runny nose, sore throat, muscle pains, headache, coughing, sneezing, and feeling tired.

Sinusitis

sinus infectionrhinosinusitischronic sinusitis
If the sinus passage remains blocked, there is a chance that sinusitis may result.
Acute sinusitis may be accompanied by thick nasal discharge that is usually green in color and may contain pus (purulent) and/or blood.

Methadone

Methadone treatmentAmidonesFizzies
It can be a side effect of crying, exposure to cold temperatures, cocaine abuse or withdrawal, such as from opioids like methadone.
Runny nose

Nasal polyp

nasal polypsnasal polyposispolyps
Chronic sinusitis occurs when one or more nasal polyps appear.
Symptoms include trouble breathing through the nose, loss of smell, decreased taste, post nasal drip, and a runny nose.

Crying

cryweepingcried
It can be a side effect of crying, exposure to cold temperatures, cocaine abuse or withdrawal, such as from opioids like methadone.
Other common side effects of crying are quivering lips, a runny nose, and an unsteady, cracking voice.

Basilar skull fracture

basal skull fractureskull fracture, basilarto the base of the skull
A basilar skull fracture can result in a rupture of the barrier between the sinonasal cavity and the anterior cranial fossae or the middle cranial fossae.
A cerebrospinal fluid (CSF) leak occurs in about 20% of cases and can result in fluid leaking from the nose or ear.

Whooping cough

pertussiswhooping-coughPertussis (whooping cough)
Other causes include cystic fibrosis, whooping cough, nasal tumors, hormonal changes, and cluster headaches.
Initially, symptoms are usually similar to those of the common cold with a runny nose, fever, and mild cough.

Cluster headache

cluster headachesclusterHeadaches, cluster, not intractable
Other causes include cystic fibrosis, whooping cough, nasal tumors, hormonal changes, and cluster headaches.
Cluster headache attack is accompanied by at least one of the following autonomic symptoms: drooping eyelid, pupil constriction, redness of the conjunctiva, tearing, runny nose and less commonly, facial blushing, swelling, or sweating, typically appearing on the same side of the head as the pain.

Nasolacrimal duct

tear ducttear ductsduct
When excess tears are produced, the liquid drains through the inner corner of the eyelids, through the nasolacrimal duct, and into the nasal cavities.
This is the reason the nose starts to run when a person is crying or has watery eyes from an allergy, and why one can sometimes taste eye drops.

Rhinitis medicamentosa

[8drug-induced rhinitisrebound congestion
Alternatively, saline nasal sprays and vasoconstrictor nasal sprays may also be used, but may become counterproductive after several days of use, causing rhinitis medicamentosa.
The characteristic presentation of RM involves nasal congestion without rhinorrhea, postnasal drip, or sneezing following several days of decongestant use.

Nasal spray

nose spraydecongestive nose spraynose drops
Alternatively, saline nasal sprays and vasoconstrictor nasal sprays may also be used, but may become counterproductive after several days of use, causing rhinitis medicamentosa.
They can reduce inflammation and histamine production in the nasal passages, and have been shown to relieve nasal congestion, runny nose, itchy nose and sneezing.

Nose-blowing

nose blowingBlowing one's noseblowing of the nose
For general cases nose-blowing can get rid of the mucus buildup.
Nose-blowing may be used to alleviate nasal congestion or rhinorrhea (runny nose).

Nasal cavity

nasal cavitiesnasal passagenasal
Rhinorrhea or rhinorrhoea is a condition where the nasal cavity is filled with a significant amount of mucus fluid.

Mucus

mucousnasal mucussnot
Rhinorrhea or rhinorrhoea is a condition where the nasal cavity is filled with a significant amount of mucus fluid.

Symptom

symptomssymptomaticnon-specific symptom
Rhinorrhea is a common symptom of allergies (hay fever) or certain diseases, such as the common cold.

Cocaine

cokecocaine traffickingcrack
It can be a side effect of crying, exposure to cold temperatures, cocaine abuse or withdrawal, such as from opioids like methadone.

Drug withdrawal

withdrawalwithdrawal symptomswithdrawal syndrome
It can be a side effect of crying, exposure to cold temperatures, cocaine abuse or withdrawal, such as from opioids like methadone.

Greek language

GreekAncient GreekModern Greek
The term was coined in 1866 and is a combination of the Greek terms rhino- ("of the nose") and -rhoia ("discharge" or "flow").

Mucous membrane

mucosamucous membranesmucosal
Rhinorrhea is characterized by an excess amount of mucus produced by the mucous membranes that line the nasal cavities.

Paranasal sinuses

sinusessinusparanasal sinus
Air caught in nasal cavities, namely the sinus cavities, cannot be released and the resulting pressure may cause a headache or facial pain.

Eustachian tube

auditory tubeEustachianpharyngotympanic tube
If the mucus backs up through the Eustachian tube, it may result in ear pain or an ear infection.