Sore throats are generally caused by viral infections such as the common
cold, or by bacterial infection such as Streptococcus.
In addition, sore
throats can be caused by anything that irritates the sensitive mucous
membranes at the back of the throat and mouth. Some of these irritants
include smoke, dust, very hot food and drinks, and excessively loud
talking or shouting.
A sore throat
usually disappears within a couple of weeks and is seldom serious.
However, they can often be the first symptom of another disorder such
as cold, flu, mononucleosis, herpes simplex, measles or chickenpox.