RHINITIS SYMPTOMS |
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Colds can be caused by as many as 200
different viruses. The viruses are transmitted by sneezing and
coughing, by contact with soiled tissues or handkerchiefs, or by
close contact with an infected person. Colds are easily spread in
schools, offices, or any place where people live or work in groups.
The incubation period ranges between 24 and 72 hours.
The onset of a cold is usually sudden. The virus causes the lining
of the nose to become inflamed and produce large quantities of thin,
watery mucus. Children sometimes run a fever with a cold. The
inflammation spreads from the nasal passages to the throat and upper
airway, producing a dry cough, headache, and watery eyes. Some
people develop muscle or joint aches and feel generally tired or
weak. After several days, the nose becomes less inflamed and the
watery discharge is replaced by a thick, sticky mucus. This change
in the appearance of the nasal discharge helps to distinguish
rhinitis caused by a viral infection from rhinitis caused by an
allergy. |
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