The commonest cause of U/L mucopurulent rhinorrhoea in a child is -: (A) Foreign body, (B) Adenoids which are blocking the airways, (C) Deviated nasal septum, (D) Inadequately treated acute frontal sinusitis
Answer is A. "A unilateral nasal discharge is nearly always due to a foreign body and if the discharge has an unpleasant smell, it is pathognomonic". — Logan Turner 10th/e p. 63
"If a child presents with unilateral, foul smelling nasal discharge, the foreign body must be excluded". — Dhingra 5th/e p. 176