Have you tried any antihistamines? I didn't see any mentioned? High histamine levels can cause the symptoms your mom is experiencing. Acid reflux can also cause also cause ear issues. I hope she is healing.
She had bee so plugged feeling that she talked like she was all stuffed up.
She saw 3 ENT's and they couldn't find anything.
She has tried a nasal antihistamine and it didn't do a thing.
Recently, she has been able to get large, very thick, like glue, clots out of her nose and they are kind of brownish.
She says she feels clear after getting those out, but I cannot understand why the ENTs couldn't see anything.