Post-viral cough
A post-viral cough is a lingering cough that follows a viral respiratory tract infection, such as a common cold or flu and lasting up to eight weeks. Post-viral cough is a clinically recognized condition represented within the European medical literature.[1][2][3] Patients usually experience repeated episodes of post-viral cough. The heightened sensitivity in the respiratory tract is demonstrated by inhalation cough challenge.[4]
Contents
Cause
One possible cause for post-viral cough is that the receptors that are responsible for stimulating the cough during the respiratory tract infection are up-regulated by respiratory tract infection and continue to stimulate even after the virus has disappeared.[citation needed]
Treatment
Post-viral cough can be resistant to treatment. Post-viral cough usually goes away on its own; however, cough suppressants containing codeine may be prescribed. A study has claimed theobromine[5] in dark chocolate is more effective.[6] Inhaled steroids may work in some patients.[citation needed] Running or increased cardiovascular activity can help clear the respiratory tract.[citation needed] Often the cause is post-nasal drip,[citation needed] and so nasal steroids or pseudoephedrine might also be helpful.
See also
References
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- ↑ International Society for the Study of Cough
- ↑ Theobromine inhibits sensory nerve activation and cough
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