This is probably for the ENT docs. When you come down from heights you experience a closing of ears which goes away when you move your jaw muscles. My problem is similar, though it remains even during normal hours. Closing mouth, pinching nose and blowing does opens/betters hearing. My ENT specialist prescribed (1) Redicate-200 tab (2) K-Trip forte (3) inhaler (4) I forget name of tablet which was 1 per day. When examining, different tongs vibrations I could hear well. There has never been any flow and ears are always dry. There is no pain except a very slight pressure like feeling. Please suggest if treatment is on right track and what course of action will the ENT doc now take, as I can feel no change in my hearing condition. Thanks.