<prompt> Youngs operation is done for:Atrophic rhinitisVasomotor rhinitisAntrachonal polypAllergic rhinitis  <response>: Atrophic rhinitis OZAENA - it is a chronic inflammation of the nose characterized by atrophy of nasal mucosa and turbinate bones Nasal cavities are roomy and full of foul smelling crusts. Youngs operation - both the nostrils are closed completely just within the nasal vestibule by raising flaps they are opened after 6 months or later in these cases mucosa may reve to normal and crusting reduced. Modified youngs operation- to avoid the discomfo of bilateral nasal obstruction modified youngs operation aims to paially close the nostrils. It is also claimed to give the same benefit as youngs. 