Sir, I am suffering from chronic eustachian tube dsyfunction I have consulted many doctors and taken medicines like antihistamines ,nasal sprays and done exercises like chewing yawing and. All the stuff they had said and my problem is not curing.when I pinched my nose and blowing through ear I was hearing noise from the place of eustachian tube ...it means any fluid was build up...?? I don't know what to do please suggest me ..some doctors are saying to do gromet operation etc..