Sore throat (also called pharyngitis) is a painful inflammation of the mucous membranes lining the throat.It is a symptom of many conditions, but most often is associated with colds or influenza. Sore throat may be caused by either viral or bacterial infections or environmental conditions. Most sore throats heal without complications, but they shouldn't be ignored because some develop into serious illnesses.

Almost everyone gets a sore throat at one time or another, although children in child care or grade school have them more often than adolescents and adults. Sore throats are most common during the winter months when colds are more frequent.

Sore throats may appear suddenly and last from three to about seven days, or they may be chronic, lasting much longer. These chronic sore throats are often a symptom of an underlying condition or disease, such as a sinus infection.

Sore throats...