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A postinfectious cough is a lingering cough that follows a respiratory tract infection, such as a common cold or flu and lasting up to eight weeks. Postinfectious cough is a clinically recognized condition represented within the medical literature.
Post-acute infection syndromes (PAISs) or post-infectious syndromes are medical conditions characterized by symptoms attributed to a prior infection. While it is commonly assumed that people either recover or die from infections, long-term symptoms—or sequelae —are a possible outcome as well. [ 1 ]
A cough that shows up after COVID typically goes away within four weeks, says Dr. Leykum. And it can last as long as six months after the infection, according to the American Lung Association .
A chronic cough can be due to many things from asthma to post-COVID-19. Here's how to figure out why you can't stop coughing and how to treat it.
The average duration of cough is eighteen days [30] and in some cases people develop a post-viral cough which can linger after the infection is gone. [31] In children, the cough lasts for more than ten days in 35–40% of cases and continues for more than 25 days in 10%. [32]
The researchers found that both people who had COVID-19 or another respiratory infection since May 2020 were more likely to have lingering symptoms than people who didn’t have either infection.
A dry cough is a persistent cough where no mucus is present; this can be a sign of an infection. A chronic wet cough is a cough where excess mucus is present; depending on the colour of the phlegm, bacterial infections may be present. [16] A stress cough is when the airways of the throat are blocked to the point that it causes a reflexive spasm.
For many, COVID cough persists after the other symptoms of acute COVID-19 illness resolve. Experts explain what you can do about it and when it becomes a sign of long COVID.