@anluromi Wow! We lived this X2 with our daughters forty years ago, now may daughter has a 6 year old in the same situation.
My first daughter had her first ear infection at 5 weeks, her first tubes at one year, eventually ended up losing one eardrum completely to an infection, and needed a tympanoplasty to repair. The good news is, her speech and learning progressed normally (in spite of a few teachers who thought we were "making excuses") and her hearing now is near normal. A similar situation plagued our second daughter, the temporary solution was to keep her on a low dose of antibiotics for an entire year. (sorry the specifics are lost in the mists of time)
We had a fabulous ENT who treated 3 generations of our family and said unfortunately, genetics can cause this. We have poorly formed or placed eustachian tubes, and it becomes chronic. My Dad struggled all his life (as did 2 of his brothers), my brother and I, both in our 70's still deal with it.
When daughter # 2 was suffering, with the "...Ongoing nasal congestion and drainage..." he sent her for allergy testing. Once we made out environment more allergy-friendly (a long list - limited pets, stuffed animals and fluffy covers, lots of laundry and constant cleaning, no carpet, remove woodstove, install HEPA filters, determine food sensitivities...) we all did a lot better.
Has anyone suggested allergies could be behind this problems? Did you, your husband or any siblings have a history of ear infection?