[ladyjane]

Originally Posted by pstinard

There's not much in the literature about the toxicity of ear packs using the ingredients in Oti-Pak E and BNT. Most of the issues are with the use of gentamicin, which is not in these particular products. However, I did find the following warnings about the use of ear packs in general:

(1) If the ear drum is broken, then drugs that would not normally cause deafness can flow into the middle ear and cause deafness:

from https://www.cabdirect.org/cabdirect/...0073120055.pdf (OTOTOXICITY – WHAT TO CHOOSE WHEN YOU HAVE TO USE SOMETHING? by Sue Patterson. North American Veterinary Conference, 2007.)

(2) Ear packs can cause toxic substances released by yeast and bacteria to remain in contact with the lining of the ear, causing damage:

from https://www.cliniciansbrief.com/site...tisExterna.pdf (Otitis Externa, by Louis Gotthelf, DVM, Montgomery, AL)

I will not be using them. Thanks for all Phil!