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Rhinorrhea (American English), also spelled rhinorrhoea or rhinorrhœa (British English), or informally runny nose is the free discharge of a thin mucus fluid from the nose; [1] it is an extremely common condition. [2] It is a common symptom of allergies or certain viral infections, such as the common cold or COVID-19.
Rhinitis is categorized into three types (although infectious rhinitis is typically regarded as a separate clinical entity due to its transient nature): (i) infectious rhinitis includes acute and chronic bacterial infections; (ii) nonallergic rhinitis [14] includes vasomotor, idiopathic, hormonal, atrophic, occupational, and gustatory rhinitis, as well as rhinitis medicamentosa (rebound ...
The common cold or the cold is a viral infectious disease of the upper respiratory tract that primarily affects the respiratory mucosa of the nose, throat, sinuses, and larynx. [6] [8] Signs and symptoms may appear in as little as two days after exposure to the virus. [6] These may include coughing, sore throat, runny nose, sneezing, headache ...
Signs and symptoms include a runny or stuffy nose, sneezing, red, itchy, and watery eyes, and swelling around the eyes. [1] The fluid from the nose is usually clear. [ 2 ] Symptom onset is often within minutes following allergen exposure, and can affect sleep and the ability to work or study.
Antihistamines that target the histamine H 1-receptor are used to treat allergic reactions in the nose (e.g., itching, runny nose, and sneezing). In addition, they may be used to treat insomnia, motion sickness, or vertigo caused by problems with the inner ear.
These are usually accompanied by respiratory symptoms such as a dry cough, sore or dry throat, hoarse voice, and a stuffy or runny nose. Coughing is the most common symptom. [1] Gastrointestinal symptoms may also occur, including nausea, vomiting, diarrhea, [11] and gastroenteritis, [12] especially in children.
Symptoms may include red eyes, an itchy rash, sneezing, coughing, a runny nose, shortness of breath, or swelling. [12] Note that food intolerances and food poisoning are separate conditions. [3] [4] Common allergens include pollen and certain foods. [11] Metals and other substances may also cause such problems. [11]
Symptoms may include fever, cough, runny nose or rhinorrhea, and wheezing. [1] More severe cases may be associated with nasal flaring, grunting, or respiratory distress. [1] If the child has not been able to feed properly due to the illness, signs of dehydration may be present. [1]