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Yellow snot also indicates infection. Like with green snot, yellow snot is the collection of defensive white blood cell secretions. Generally, the greener the color, the more cells required for ...
Having green, yellow, or thickened phlegm (sputum) does not always indicate the presence of an infection. Also, if an infection is present, the color of the phlegm (sputum) does not determine whether a virus, a bacterium or another pathogen has caused it. Simple allergies can also cause changes in the color of the mucus. [1]
Rhinosinusitis is inflammation or infection of the sinus cavities. Acute rhinosinusitis has symptoms lasting less than four weeks, while chronic rhinosinusitis lasts greater than 12 weeks. [8] This persistent irritation can lead to increased mucus production as a result of pro-inflammatory pathways, producing symptoms of PND. [7]
If the mucus backs up through the Eustachian tube, it may result in ear pain or an ear infection. Excess mucus accumulating in the throat or back of the nose may cause a post-nasal drip, resulting in a sore throat or coughing. [6] Additional symptoms include sneezing, nosebleeds, and nasal discharge. [7]
In children, half of cases resolve in 10 days and 90% in 15 days. [92] Severe complications, if they occur, are usually in the very old, the very young, or those who are immunosuppressed . [ 21 ] Secondary bacterial infections may occur resulting in sinusitis , pharyngitis , or an ear infection . [ 93 ]
Whooping cough (/ ˈ h uː p ɪ ŋ / or / ˈ w uː p ɪ ŋ /), also known as pertussis or the 100-day cough, is a highly contagious, vaccine-preventable bacterial disease. [1] [10] Initial symptoms are usually similar to those of the common cold with a runny nose, fever, and mild cough, but these are followed by two or three months of severe coughing fits. [1]
Acute bronchiolitis is caused by a viral infection, usually affecting children younger than two years of age. [5] 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]
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