Cold symptom (5)
'cold symptom' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for cough that I've seen before include "Clear one's throat" , "Hacking affliction" , "Respiratory infection" , "Sudden expulsion of air from the lungs" , "Confess (sl.)" .)
(Another definition for congestion that I've seen is " Overcrowding".)
'cold symptom' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for sneeze that I've seen before include "Prelude to Bless you!" , "Explosive expulsion of air from the nose" , "Inadvertent explosion of air" , "Violent, involuntary expulsion of breath" , "Nasal eruption - starting a cold?" .)