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How long after Osurnia ear gel can my dog safely get an allergy test?

Updated on September 23rd, 2025

Pet's info: Dog | French Bulldog | Male | unneutered | 1 year and 9 months old | 23 lbs

Hi my dog Buddy a French bull dog was taken to the vets for a ear yeast infection. We agreed in fairness to him it would be better for the vet to do the course of Osurnia Gel. He had the first one on 05/03/18 in both ears and the second dose on 12/03/18. My question is how long will this remain in his system for as we have a mouth swab allergy test that we cannot use if Buddy has had any antihistamines or steroids and being a Frenchie he is very sensitive to things and we would like to know what

1 Answer

Most Helpful Answer

Jenny, DVM

Answered By Jenny, DVM

Veterinarian

Published on March 24th, 2018

Osurina is long acting ear medication. The second does will remain in there for about a month. However, because it is just a topical, it should not interfere with your test if you wait 2 weeks after the last application. Any medication given by mouth or any steriod injections will typically need 4-6 weeks after the last one before proceeding with the test
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