Causes of Nasal/Sinus Infection
Ducted heating in the presence of carpet and cigarette smoke, are important
pre-disposing factors nowadays of nasal/sinus infections.
Air-conditioned and dry air environments are also pre-disposing
factors. A compromised immune system due to stress, inadequate diet
and exposure to cold or draughts, can also be important causes of
nasal/sinus infection. More acute but relatively short-lasting causes
are common colds and flues.