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My dog's severe seasonal allergies: Benadryl not working. What now?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 6 years and 1 month old | 68 lbs

My dog has seasonal allergies that I can usually control with benadryl and washing him once a week but he seems to be having a bad bout. I added omega 3 supplements to his diet and have been spraying him with "veterinary formula clinical care antiseptic & antifungal spray". I don't know what else I should do. The pictures are of his belly and armpits.

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1 Answer

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on April 25th, 2019

This is probably due to a severe allergy, although it could also be fleas or mites. First of all, in order to rule out skin parasites, you will need to treat him with a high quality flea treatment (e.g. advantage), then get him to the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try discovering the cause of the allergy. Some medications can be given by the vet in order to repair the skin lesions (steroids and antibiotics). simultaneously you should start him on a prescription hypoallergenic diet for at least 2 months. Hopefully you will see some results after all this, if not you and your vet should consider putting him on a long term allergy treatment (Atopica or Apoquel).

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