https://www.vetsurgeon.org/f/clinical-questions/29508/otitis-in-a-kitten---underlying-cause I saw a 3 month old kitten today with nasty unilateral otitis externa. The kitten had a bit of excess discharge in the ear at first vaccine about a month ago, but not treated with anything. He has been on stronghold since then (has had 2 doses). It hasen-USTelligent Community 10https://www.vetsurgeon.org/thread/226817?ContentTypeID=1Wed, 18 Nov 2020 16:56:53 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:228ed48e-22e7-43b7-89a8-cc6b37e05676David Scarff<p>I agree with your thoughts: I suppose we should consider food allergy as this can occur in young dogs and cats, but would also wonder about a contact irritant reaction as a trigger. I find otitis in the cat frustrating to treat sometimes, and do see some where a reaction to topical drops seems to perpetuate the problem!!</p><div style="clear:both;"></div>