Cough is a natural defense reflex to expel mucus or irritating agents from the airways. It can be acute, chronic, dry or oily. It is, most often, due to a viral infection but can be caused by other diseases: gastroesophageal reflux disease, asthma, allergy…(1)
  • Cough is a frequent symptom in adults but even more so in children, with a peak in frequency at 6 years (1).
  • At this age, more than 27% of children have had at least two cough episodes in the past year. Children develop their immune systems and are more sensitive to airway damage than adults (1).
  • In the most cases, coughing reveals a viral or more rarely bacterial infection of the respiratory tract:
    • rhinopharyngitis
    • laryngitis
    • bronchiolitis
    • acute bronchitis
    • sinusitis
    • pneumonia
    • whooping cough (1).
    • It is also chronically present in chronic obstructive pulmonary disease or chronic bronchitis (1).

(1)AMELI : Comprendre les mécanismes de la toux (consulté le 01/08/2018)