I would be slightly concerned with the gentamicin antibiotic in the BEG nasal spray, as gentamicin has ototoxicity.
Just ran across this pretty scarey tidbit at
THIS SITE:
Conclusions: Gentamicin ototoxicity is vestibular, not cochlear, producing permanent loss of balance, but not of hearing. Gentamicin can be vestibulotoxic in any dose, in any regimen, at any serum level.
Here's the introductory paragraph:
Gentamicin is an important bactericidal antibiotic with two serious potential adverse effects: nephrotoxicity and ototoxicity. Clinicians are well aware that rising serum creatinine levels in patients treated with gentamicin could indicate nephrotoxicity. However, many do not know that, contrary to textbooks and antibiotic guidelines, gentamicin ototoxicity causes impairment of vestibular, not auditory, function.
1,
2 Vestibulotoxicity is frequently overlooked in patients having gentamicin,
3,
4,
5,
6,
7 so that
severe, irreversible, bilateral vestibular loss can occur, causing permanent imbalance, which is particularly debilitating in elderly people.