A child with constant runny nose is not an uncommon scenario in most families. The medical term for runny nose is rhinorrhoea. The causes for runny nose in children are allergic, non-allergic and infective rhinitis. In children, allergic and infective rhinitis are by far the most common. The word ‘Rhinitis’ means inflammation of the nose which is present in all cases of rhinorrhoea in at least a mild form.