Children Rinofaringitis
General concepts in 
Is the leading cause of school absenteeism and the most frequent reason for consultation in pediatrics (16.5% of consultations), despite a high percentage of cases resolved with self-medication in the family.
A size proportion of telephone consultations poison control centers is related to cough and cold medications. It appears not to be of mere placebos but hazards associated with certain medications.
The common cold is a disease of worldwide distribution, benign, self-limited, brief and effective treatment. It is very common in children (3 to 10 annually) is often the expression of viral primary infection. Remember that the immune tissue of the respiratory tract is not only the local response, but forms an important part of the inputs that determine the systemic response.
Some 20 types of viruses can cause common cold: the most frequent are the rhino viruses (35%), influenza and respiratory syncytial virus (the cause of most of “colds going down to the chest” and that last up to 2 weeks).
Despite cold called no evidence that cold promotes viral growth or decrease our resistance: its frequency is higher in autumn and winter at any latitude, no significant variation in the climate.
Certain factors increase their impact:
1. By gaining exposure to virus: the first time kindergarten attendance increases to 50% in the number of episodes, reaching for even a frequency of about 10-12 per year.
2. By modifying the host file: sustained exposure to irritants (smoke).
The transmission mechanism is directed by sneezing, or indirectly by dirty hands or objects contaminated recently. The spread by brief contact in a waiting room is fortunately very unlikely.
From the onset of symptoms during a virus spread to 2 weeks (maximum infectiousness about 4 to 7 days).