Thanks for visiting the Family Practice Forum.
Well, I have to say that the condition of Meniere's Disease comes to mind. This is typically the triad of tinnitis (ringing in the ears), hearing loss, and vertigo. I understand you have no vertigo but all 3 are not ALWAYS present with Meniere's disease. Now, the ENT would appear to be on the right track. Neomycin drops would typically be used for Otitis Externa (this is an infection of the external ear canal and is typically painful when you tug on the ear). It sound like the middle ear is clear (i.e. no infection) based on what your doctors are telling you. I would tend to agree with the approach of trying to get any fluid out of the middle and inner ear. (In effect, Meniere's disease is quite commonly due to fluid in the inner ear). I have to say that it does quite commonly take months for this fluid to clear, particularly if you are someone who suffers from allergies. If it doesn't get better, a trip to the Neurologist and possibly some imagaging (i.e. MRI) may be in order.